waxes for explosives

experience.performance. of our specialty waxes for mining explosives

Basewax™ for emulsion explosives

Basewax™ blends are used to modify the continuous fuel oil phase of emulsions explosives such as ANFO to form a stable and consistent explosive compound.

Basewax™ explosive desensitisation agents

Traditionally microcrystalline and beeswaxes are used to provide lubricity and heat-shielding in high explosive processing.

Syncera™ wax emulsions for explosives coating

Pre-coating of high explosives with a protective wax emulsion provides enhanced safety performance and packing density in forming operations.

paramelt products

our range of speciality waxes for explosive applications

Our Paraflex™ coating wax range includes

  • Paraflex™ CW  - non-sealable waxes for gloss & barrier
  • Paraflex™ WS   - waxy peel-seal grades
  • Paraflex™ HS    - high-strength heat seal hot melts

A wide range of Paraflex™ CW types are available for different types of paper, machine viscosity and balances between gloss and scuff resistance. These waxes are used for twist, fold, bunch and sachet wrappers for sweets, meat and cheese wrappers, flower wrappers, technical wrapping papers and decorative papers.

Our Paraflex™ WS and Paraflex™ HS heat seal waxes and hot melts also provide gloss & barrier performance combined with tailored heat sealability for a wide range of applications.

Paraflex™ WS can be used for either single or double-side coatings to provide an easy-open, peel-seal coating for the packaging of, for example, bread, sweets and chewing gum.

Paraflex™ HS grades offer a higher sealing strength and specific adhesion to a broad range of both polar and non-polar substrates, such as PE, PP, PS, PET, PLA, glass and aluminum. Common applications for the Paraflex HS range of products include yogurt banderole (in-mould labelling / IML), soap wrappers, lidding, cap seal liners or in-register coated confectionery laminates.

The differences between the various grades relate to the properties required in the wax coating and also the machinery employed. The main performance criteria for gloss and heat seal coating waxes are:

Coating requirements

  • rheology
  • thermal stability
  • operating temperature
  • non-blocking

Packaging machine requirements

  • scuff resistance
  • controlled COF(c/c c/m)
  • heat sealability
  • hot-tack
  • deadfold and twist retention
  • wide operating window

End-use requirements

  • moisture barrier (MVTR/Cobb)
  • release against the packed product
  • tailored gloss levels
  • organoleptics
  • regulatory compliance e.g. direct food contact approval

Paramelt has numerous filled pattern wax options each designed to maximize key properties for a range of applications. Utilizing multiple fillers such as terephalic acid (TA), cross-linked polystyrene (XLPS), bisphenol-A (BPA) and our new Organic Filler, our filled pattern waxes are designed to work in liquid, paste and even billet injection processes. Filled pattern waxes can be used in nearly every application and are especially critical for their advantages in producing large, complex and ceramic-cored castings.

Some of the key advantages of using filled pattern waxes are:

  • superior dimensional control
  • minimal shrinkage and cavitation
  • fast injection cycles
  • low thermal expansion
  • elimination of chills

When the product performance demands are high and the control requirements are at their greatest, Paramelt’s virgin runner waxes deliver. The industry’s most reliable and most commonly used virgin runner waxes are made by Paramelt.

With several options to choose from, we will work with you to find the most compatible runner wax for your process. To maximize consistency in your injection quality, our virgin sprue waxes are the best choice. They ensure low residual ash, consistent quality and repeatability while having the strength required to hold complex shapes.

Our fiber-free soluble wax offerings give dimensional accuracy, fast leaching, and excellent surface finish. The lack of fibers makes disposal of the water bath a breeze.  The fiber-free versions also melt on inclined melters as opposed to traditional tank melting that is required for fiber-reinforced versions.  All of our fiber-free versions are designed for quick leaching in a warm water bath that contains a small amount of acid to help expedite the leaching process.  Various colors are also available to help distinguish between the different waxes used in the wax room.

Creating a core within wax patterns should not be a time consuming and costly process. Paramelt has closely worked with investment casters from around the world to develop some ingenious formulas precisely for creating cores. Our portfolio of quick dissolving soluble waxes has been developed to tackle the needs of both large and small cores.

Paramelt Water Soluble Waxes will easily dissolve with no residue left behind. These waxes are scientifically engineered for consistency, accuracy and to make your most difficult castings easier and faster.

Paramelt’s Dip Seal waxes deliver smooth, even coatings that cover defects and poor surface conditions of runners and sprues, reducing defects from shell contamination during metal pouring. With their low viscosities and melting points, they also aid in the reduction of shell cracking by liquifying quickly and migrating into the shell easily. This creates a relief space for the sprue wax to expand without applying too much hydrostatic pressure on the shell during dewax.

We have several formulations that insure maximum compatibility with the sprue wax, and include products that improve shell adhesion and those that are designed for hot knife welding along with traditional stick-tight pattern mounting.

Our Extruded Wax Shapes are designed to deliver high performance for short-run custom sprue systems. Available in a wide range of shapes and sizes, we offer several standard formulas ranging from extremely flexible to highly rigid. The very low melting points and viscosity of Wax Extrusions permit rapid mold evacuations, relieving pressure and virtually eliminating shell crack problems.

These precision waxes can:

  • Allow you to easily create custom wax assemblies unrestricted in design by conventional injection dies.
  • Release injection equipment for other production needs.
  • Contribute to faster sprue construction and reduced set-up times

Paramelt has been active in the cheese wax industry from the very beginning since the founder of Paramelt Mr Dirk de Wit developed the concept of cheese wax coatings in the early 1900´s. Traditionally the Dutch cheese industry mainly exported Gouda and Edam cheese in large quantities and became an important user of cheese wax. Their famous yellow and red colors became a strongly recognized trademark for these well-known cheese styles.

Paramelt is acknowledged today as the global market leader in both mineral and vegetable wax-based cheese coatings, thanks to this long-term investment and focused approach. As market leader for cheese coatings Paramelt offers the widest range of products for this sector including more than hundred different Paradip™ cheese waxes. This enables Paramelt to meet the full range of market demands from small mini cheese snack portions all the way up to fully matured large hard cheese wheels.

Over the years, cheese waxes have increasingly been used to protect and promote hard and semi-hard cheeses. The wax provides not only a fully sealed barrier coating, but also an attractive appearance with bespoke color and controlled gloss. Today Paramelt offers more than a hundred products, specifically for the cheese industry and many of them bespoke products to meet specific customer or process needs.

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Cheese categories

There is a wide variety of cheeses produced all over the world, often categorized by their degree of ripening and the hardness of the cheese. Typical examples where cheese waxes are used are

Stretch curd cheese

e.g. Pasta Filata, Provolone

Medium-hard cheese

e.g. Edam, Gouda, Jarlsberg

Semi-hard or hard cheese

e.g. Cheddar, Red Leicester, Colby

Depending on the specific nature of the cheese in terms of moisture and fat content, surface characteristics, age, size and shape there can be considerably different demands on the performance requirements of the cheese wax. In addition to the cheese itself, a lot of different machines and process configurations have been developed for the waxing of cheese. These range from simple low throughput machines in ‘farm-based craft dairies’ through to high output, fully automated coating lines in modern industrial dairies.

The use of wax to encapsulate cheese offers a range of both functional and marketing benefits:

Protection

  • Inhibits mould growth
  • Prevent loss of weight/moisture
  • Reduce damage during transport
  • Stop (aerobic) ripening of the cheese

Promotion

  • Strong brand identity
  • Distinctive & attractive shelf appeal
  • Extended shelf life

Depending on the type of cheese and waxing machine used, the following properties of a cheese waxes are of importance:

  • Resistance to cracking
  • Appropriate ‘adhesion’ to the cheese
  • High flexibility
  • Resistance to pressure
  • Appropriate congealing time
  • Stability of colorants and pigments
  • Required coating weight
  • Low scuff on transport belts and machine parts
  • Good flow properties
  • Non-blocking properties
  • Closed film without any pinholes
  • Good cutting properties

Mineral hydrocarbon waxes are formed from long, essentially linear hydrocarbon chains.  The differences in performance and properties originate from the key characteristics of the chain, including:

  • Overall hydrocarbon chain length ( For example, there is a direct relationship between the melting point of linear mineral hydrocarbons (the so called n-alkanes) and the length of the hydrocarbon chain
  • Degree and position of branching within the chain (Jan Woldhuis : methyl group 1 position)
  • Content and location of cyclic groups within the chain

Paramelt’s Tech-Clean™ process has been optimized over several decades. It removes all water, solid particulates and metallic contaminations from the spent wax, essentially scrubbing the wax from its contaminants.

This process is able to be used on both filled and non-filled wax reclaim streams, and the resulting Tech-Cleaned wax has an ash content similar to virgin wax. The Tech-Cleaned reclaimed wax can be used for sprue and gating, as well as a component in pattern waxes to help reduce overall wax costs, disposal costs of spent wax and result in a greener operation.

Atmospheric ozone is able to attack the double-bonds of unprotected rubber compounds by a free-radical mechanism. This reaction occurs quite rapidly and quickly leads to surface breakdown visible as cracks in the structure of the material. One way to protect rubber articles such as tires from perishing in this manner, is to introduce a migratory barrier material into the rubber compound which exudes to the surface of the rubber and forms a protective layer against free-radical degradation. One of the most common additive solutions is the use of hydrocarbon waxes of varying chain length and morphology to provide protection across a range of temperature and time scale requirements.

Protective compounding of rubber involving physical protection of the surface using a wax film is by no means a new concept, with the first patent claiming such protection dating back to 1881. Over the intervening years a lot has been learned about the key factors influencing compatibility and migration rates as well as the development of new wax types and fractions.

Dilavest™ P control point grades are commonly used in the automobile sector for the adjustment of radiation cooling water, radiator fan and the oil system.
Dilavest™ grades are also used in the aerospace sector for control of lubricating oils and hydraulic fluids in the cooling systems.

A wide range of thermostat waxes with control points from 75°C to 130°C is available. Additional products outside this range can be developed and produced on request.

For what appears like a relatively straightforward process activity, the use of waxes in the poultry defeathering industry has a surprisingly divers range of product requirements. Built on years of experience in combination with a close collaboration of process machinery manufacturers Paramelt have developed an extensive range of plucking waxes to cover a broad range of operating scenarios and poultry types.

Long service life

One of the benefits of wax as the stripping for removing the last vestiges of fine feathers and stubble is the ability to clean up and reuse the wax after each cycle. The service life of the wax is primarily impacted by the uptake of contaminants such as water, blood, fat and feather residues, which can negatively influence the mechanical, thermal and adhesive characteristics of the blend. In addition, repeated processing of the wax through broad temperature cycles in both dry and aqueous environments can lead to further deterioration of the wax performance.
The high initial performance of Cereplume waxes combined with the use of raw materials compatible with this operating environment protected by appropriate performance additives to stabilize the system, lead to the best possible service life from the wax. This unique combination of properties are key to ensure the lowest costs of ownership from the wax process with savings as high as 75% in wax consumption having been achieved.

High purity - food grade

Naturally, since the poultry being processed is exposed to the Cereplume wax for a length of time across a range of temperatures, there is the potential for transfer of contaminants from the wax onto the bird. This means that only carefully selected, high purity, food grade raw materials are used in the formulation of our Cereplume range. In addition to this we produce in an FSSC 22000 manufacturing facility operating under HACCP principles to ensure the highest possible security in the supply chain.

Manual or automated plucking processes

Depending on the exact nature of the process being employed the speed, severity and mode of action in dewaxing can vary significantly and require substantially different characteristics from the wax used to ensure complete removal of all remaining vestiges across the full operating window.

Clean removal

The role of wax within the poultry processing sector is to ensure perfect skin presentation with no remaining feathers or stubble. To achieve consistently good results requires a consistent and tailored balance of wax properties, which are well matched to the process conditions. In particular, it is important to achieve an optimal balance of stiffness, strength and cohesion from the wax blend whilst ensuring that it does not become too strongly adhered to the skin.

High line speed - fast congealing

A rate limiting step in dry poultry processing using wax can be the time taken for the wax to congeal sufficiently to achieve the mechanical properties required for effective wax stripping whilst ensuring efficient feather removal. In addition to formulating our poultry waxes for clean and effective removal, Paramelt also ensure the use of carefully selected and controlled wax fractions to give optimal and consistent congealing behaviour matched to the needs of our customers’ processes.

Operating temperature

The operating temperature of the wax application bath in combination with immersion time allow for the control of the wax coating weight. The applied wax weight is critical in ensuring the desired defeathering performance. If too little wax is applied this can lead to incomplete coverage or poor plumage removal. In contrast a too high applied weight will lead to slower congealing behaviour and poorer removability. As well as the impact on application weight and removability, the wax must be designed to ensure that the required balance of operating temperature and immersion time does not cause a detrimental impact on skin presentation.

Single-ply roofing

What is single ply, what are the advantages? Single ply membranes can be used in many ways. Here are some of the reasons you might choose to use them.

  • Rapid construction allowing early interior fit-out
  • Low capital cost and cost-in-use
  • Safe, flame-free construction using hot-air welding, adhesives and fasteners
  • High thermal performance using lightweight, thermally efficient rigid insulation
  • Cold bridging eliminated by use of thermal break fasteners
  • Effective control of air leakage to meet new energy efficiency regulations
  • Minimum roof zone depth to maximise design freedom
  • Easy repair, modification and refurbishment
  • Simple detailing to suit all situations
  • Interfaces to other construction elements
  • Various colour options with matching profiles for eaves, verges and parapets
  • Refurbishment
  • Freedom of form-Single ply technology offers maximum freedom of choice in roof design, performance and appearance

‘Warm roof application’
New roof, vs Renovation old bitumen roofs
Adhesives vs mechanical fastening
US vs Europe:
Europe roofing membranes 1,2 m generic flat roofing EPDM is fleece backed with PU and and glued overlaps with contact adhesuives
US roofing membranes can be up to 9 m naked EDPM in combi with contact adhesives and tapes and primers

Ammonium nitrate is not of itself an explosive material, but readily forms an explosive mixture when combined with fuels such as mineral oil. In addition, ammonium nitrate is highly sensitive to moisture, which limits its use in open mining environments. As a result of these deficiencies, emulsion-based compositions were developed to optimise the explosive capacity of so-called Ammonium Nitrate Fuel Oil (ANFO) explosives. These emulsions are formed from a continuous oil phase with a dispersed salt mixture, primarily ammonium nitrate together with a bulking or sensitising agent, which can be air bubbles or microcapsules and an emulsifier.

The physical material properties of these ANFO explosives are largely determined by the nature of the continuous, oil phase. A wide range of waxes is therefore used to modify the oil phase in the formulation of ANFO emulsion explosives. The waxes provide certain key characteristics to the end compound, without compromising on high calorific value as a fuel.

Moisture barrier

One of the obvious advantages of producing water in oil emulsion compositions (where oil forms the continuous phase) is the protection provided to the encapsulated salt particle. Paraffin waxes, being highly linear and regular readily crystallize on cooling from the melt to give very high levels of moisture barrier. Grades can be selected on the basis of their normal content to give enhanced barrier protection in the blend.

Thermal stability

Whilst highly regular paraffin waxes provide enhanced moisture protection, their lower melting point and high regularity mean that they are prone to reorganisation and recrystallization during repeated thermal cycling. Microcrystalline waxes, which are less structurally regular but possess a higher melting point due to their longer chain length, are therefore widely used to enhance thermal stability of the continuous phase with respect to reorganisation, which may disrupt the surface layer on the emulsion particle.

Storage stability

The inherent moisture barrier properties of the oil base phase naturally lead to enhanced storage stability of the emulsion explosives. However, of itself, mineral oil possesses no solid-state structure at ambient temperatures and so the physical structure of the emulsion cannot be permanently set to ensure consistent explosive performance. Waxes are used within the oil phase to fix the matrix structure and to provide long-term stability to the emulsion.

Stiffness

Explosive propagation in narrow diameter environments is known to be particularly challenging. Although the small diameter (SD) performance of ANFO explosives are recognised to be relatively good, propagation in end-initiated so-called cap sensitive, formulations can be limited. Here, stiff, high melting waxes are used to boost shock propagation through the charge during initiation.

Flexibility

Whilst paraffin and synthetic waxes are highly effective property modification such as stiffness, oil binding and moisture barrier, their high crystallinity and macro-crystalline morphology can have a detrimental effect on the flow and processability of the final compound. Amorphous or microcrystalline waxes are frequently employed to moderate the final plasticity of the emulsion.

Viscosity modification of the continuous oil/wax phase

The control of the emulsion morphology is critically dependent on the relative rheologies of the aqueous and oil based phases, as well as the relative interfacial surface tension. Waxes play an important role in adjusting the dynamic viscosity of the oil phase.

Emulsion explosives also require a bulking agent or sensitiser which provide initiation points for the explosion reaction via the so-called ‘hot spot’ mechanism. In many ANFO explosives these sensitisers are simply formed by the inclusion of stable air droplets within the emulsion. Waxes perform a critical role in this respect by enhancing the air entrainment capacity of the oil phase.

Our Plastomelt™ products cover the full range of requirements from low cost, technical grade yellow EVA’s through to direct food contact, white grades optimally formulated to achieve the desired cost performance balance.

Paramelt is a financially stable company with D&B rating 1

In Europe and the USA we operate highly protected sites in both Heerhugowaard and Muskegon achieving FM Global HPR status for reliability and operational continuity

We ensure the appropriate manufacturing environments to secure regulatory compliance such as GMP and HACCP

Our extensive global supply chain allows us to guarantee continuity of supply, even in times of material shortages

Our operations are supported by secure Process Management Systems

  • Oracle E-business suite
    fully integrated systems from order to invoice, specialization in formulating industry;
    formulations, specifications and process routings;
    full traceability and lot genealogy
  • Aurea CRM
    Controlled management of complaint handling as well as internal deviations;
    Management of Change.
  • WMS warehouse management system
    Stock management

Due to their superior ability to bind high amounts of oil and high flexibility, microcrystalline waxes are useful in practically all types of cosmetics and are especially useful in balms sticks to prevent “sweating” or oil migration. They also impart structure, body and strength where needed depending on their specific composition. They create small crystalline structures in a product, and help to give matte finish and excellent color depth.

Microcrystalline waxes are mixtures of linear and branched hydrocarbons. They are predominantly branched structures, with minor amounts of n-alkanes (linear hydrocarbons). Paramelt’s line of microcrystalline waxes are tightly controlled to ensure consistent levels of branching and linearity. Delivering a consistency of performance time after time.

Our Multicollac™ casein adhesives have a proven track record, and offer the highest level of labelling performance. This technology provides the benchmark of performance in high speed labelling in cold and wet environments.

Paramelt offers a range of selected mineral and synthetic waxes for use in thermal transfer applications, where the melting and rheological characteristics are carefully controlled to provide consistent performance in this critical application.

In addition to these base wax types, Paramelt is able to further engineer the materials to offer customized products with even more tightly controlled characteristics for enhanced printing performance. The following illustrations highlight the considerable thermal and flow impact that can be achieved by targeted refining.

In broad terms, mineral waxes consist of linear chains of hydrocarbons, the so-called n-alkanes or paraffins.

These linear molecules show a direct relationship between melting point and chain length. Most paraffinic waxes are refined from crude oil by vacuum distillation over a defined temperature range, reflecting a distribution in chain lengths.

Depending on the source of the crude oil, this boiling point fraction will contain a different distribution both of chain length and degree of branching. As a result, the melting and congealing behaviour of the resultant ‘wax’ is highly dependent on both the feedstock as well as refinery process conditions.

chain length vs melting point

In addition to the mineral waxes, linear hydrocarbon waxes can be produced by synthetic means via the so-called Fischer-Tropsch process or low molecular weight polyethylene waxes using both Ziegler-Natta and metallocene catalysis.

Whilst synthetic processes do allow a more consistent and reproducible molecular weight distribution, these waxes still benefit from further refining to tighten up the distribution to give sharper response behaviour for thermal transfer printing both in terms of melting and rheological behaviour.

Dynol solvent-free 1K PU adhesives require sufficient moisture during the sandwich panel production process to fully cure the adhesive layer and achieve the final bond strength. This means that the core and or sheet material needs to allow for moisture absorbance or transport during the curing process.

1K PU adhesives are typically used in (semi)-discontinuous processes, where the production speed is relatively low. Moisture control at the point of lamination can help to influence curing speed. Provided that the target substrates are suitable for 1K PU, the adhesive allows for more frequent changes of laminated substrates on the same line and can bring more flexibility.

Paramelt provides a tailored range of Dynol 1K PU adhesives for different curing speeds, rheology and viscosities. For more difficult to adhere substrates such as PVC, ABS or aluminium products with increased specific adhesion are available. No matter what the specific production method (nozzle, slot-nozzle, roller or hand-applied), Paramelt is able to propose a suitable Dynol grade.

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Insulation adhesive properties

Depending on the type of sheet and core materials and application method, the following properties of the adhesive are important:

  • Substrate types (core and sheet materials)
  • Open time
  • Press time
  • Press temperature
  • Viscosity
  • Application unit and method
  • Moisture demand

The world of wax includes an extremely broad range of wax types with different physical and chemical characteristics. Primary raw material sources only provide a finite product range within each family of specific waxes offering limited, well defined characteristics.

The formulator’s knowledge is key to translate these material features into the desired performance requirements. A large part of our activities are focused on using our knowledge and experience to select and blend components to supply functional and consistent grades of wax with targeted properties.

In addition, waxes are frequently combined with many different types of rosin and hydrocarbon based resins as well as olefinic polymers (e.g. EVA, PE, EMA) and other additives, such as stabilizers, fillers, pigments and dyes.

'This blending space represents the heart of Paramelt’s core business.'

We are able to select and combine the right balance of ingredients to consistently deliver the desired functionality, whilst also simplifying supply chain and manufacturing complexity for our customers. Buying pre-blended waxes from Paramelt brings our customers significant benefits to their business in aspects such as:

GLOBAL SOURCING
  • Security of supply
  • Streamlined supply chain
  • Cost savings
MANUFACTURING
  • Simplify your process
  • Materials handling
  • Appropriate supply form
EXPERTISE
  • Quality & consistency
  • Optimal performance
  • Technical service

Paraflex NOWAX™ vegetable based waxes offer a sustainable answer to a host of today’s packaging challenges with a positive consumer image. These coating waxes provide paper-based packaging with the needed functionality like controllable barrier properties, high gloss levels, excellent release characteristics and bring additional machineability benefits like low coefficient of friction, good scuff resistance and heat sealability. They can be run on existing wax coating equipment and depending on applied coating weight, can meet all renewability and ‘end of life’ requirements.

Paramelt have developed a comprehensive range of Paraflex Nowax grades to offer equivalent functionality to traditional mineral wax-based Paraflex coatings.

Compared with standard Paraflex grades, vegetable-based Nowax solutions offer a number of advantages in the delivered functionality.

PropertyVegetable waxParaffin waxRemark
Machineability: packaging+++No static build up and excellent CoF
Machineability: coating==The coating characteristics of both product types are comparable
Gloss+++Vegetable wax can provide an even higher gloss level
Release+++The release to the packed food e.g. sticky sweets can be even better with vegetable waxes
CoF (Coefficient of Friction)+++
Scuff Resistance+++
MVTR+++In comparable coat weights vegetable waxes show a slightly higher MVTR enabling the material to breathe (e.g. an advantage for maturation of soft cheese)
Fat resistance==
Odour==Vegetable waxes have a characteristic odour different from paraffin wax
Physical properties==
Biodegradability / compostability+++Vegetable waxes offer slightly better compostability and biodegradability performance

'People prefer paper'

Customer surveys in Europe confirm that paper packaging has a very powerful appeal for consumers. An IPSOS study commissioned by PaperImpact highlighted that

93%

prefer paper for its positive environmental perception

87%

prefer paper for convenience factors (easy opening, controlled tear)

80%

prefer the feel of paper based packaging

End-of-life options

Compostable - suitable packaging constructions allow certification to EN 13432

Inherently biodegradable - minimises littering impact

repulpable - through appropriate processes

Contributes high calorific value - for incineration

Responsible sourcing

responsibly managed forests (certified fiber sources)

vegetable oils used meet the criteria of the RSPO & WWF and are GMO-free

waxes are based on sustainably produced vegetable oils

up to 99% bio based

Paramelt has a wide selection of non-filled pattern waxes for nearly every application. The latest non-filled pattern waxes have been developed to mimic filled wax performance in many applications.

Non-filled waxes are especially useful in situations that:

  • require the highest injected pattern surface quality
  • where the injection equipment available lacks proper mixing capability
  • when the injection pressure available is very low
  • situations where reclamation service is problematic due to geography or very low consumption

The development of reclaim runner wax has benefited the investment casting industry tremendously. In addition to reducing the waste of disposing of spent wax, the reclaim runner waxes lower the cost to the foundry while delivering the needed performance.

We offer several reclaim runner waxes that cover a large majority of the application demands in the investment casting industry. More than simply needing a low melting point, runner wax needs mechanical strength to maintain proper spacing of the parts during shell building, to have low impact on the shell during dewax and minimal residual ash to prevent contamination of the metal during pouring.

A cost effective solution for the industry, reclaim runner waxes make good business sense to use whenever possible. With the industry leading technology of Paramelt, our reclaim runner waxes perform time and time again.

Our fiber-filled soluble wax offerings give dimensional accuracy, fast leaching, and excellent surface finish, all while meeting the need for enhanced strength. Especially good for thick sections and complex geometries that have thick and thin sections near each other, our line of technically advanced fiber-filled soluble waxes eliminate crazing and cracking of the cores.  The added strength provided by the fiber reinforcement allows you to eliminate chills on thick parts.  Our line of fiber-filled soluble waxes must be properly melted and conditioned in traditional melting tanks as opposed to inclined melters. Typically, all the components except for the fibers themselves will dissolve in water.

Paramelt has a sub-line of fiber-filled soluble waxes that contain non-soluble filler agents designed for extremely large core components. They are most suited for applications where regular soluble waxes are too slow setting for commercial production. These products require additional tank clean-up after dissolution of the core, but are frequently the only way to achieve very large soluble cores in a commercial operation.

Paramelt’s stick-tight waxes (also referred to as 'sticky waxes') remain the industry standard with their high performance and stability. Paramelt has a number of proven options to choose from, and our experienced team makes selecting the right sticky wax for your application a snap.

Stick-tight waxes are used in the investment casting process for rapid and effective sprue assembly construction, bonding wax components together, and to attach patterns to the sprue assembly. These specially designed materials can create bonds stronger than the waxes they are joining together, ensuring the completed assembly has the necessary strength to survive the rough handling during the shell building process.

Paramelt’s stick-tight waxes stand out from our competitors as they are designed with materials that are fully compatible with the other waxes used in the foundry process, insuring that if the process spent wax is to be reclaimed, there will be no surprises. As with all of Paramelt waxes, our stick-tight waxes are made from the best raw materials and will burnout cleanly.

Paramelt’s UK site, also known as Valan Wax Products Ltd, offers a range of injected wax parts for use as runner and gating systems. From simple configurations to complex gating incorporating filters and pour cups, we will work with you to create a gating solution that is affordable, consistent and reliable. We offer standard configurations that can help alleviate the short-term demands or can fill your complete production needs.

Conventional cheese coating waxes are formulated from food grade hydrocarbon waxes refined from mineral oil. Today it is possible to formulate waxes with similar characteristics from ingredients derived from vegetable oils. These vegetable-based, natural waxes are themselves classified as food ingredients and are both renewable and compostable. In addition, the physical properties of these waxes offer additional possibilities to controlling the permeability of the cheese coating layer.

After many years of product and application development Paramelt has introduced Paradip Nowax as a platform to solve the problem of blister formation on gas forming cheese types. In contrast to mineral waxes, coatings of Paradip Nowax show a slight gas-permeability whilst still preventing the loss of moisture from the cheese. This enables the product to be used on gas forming cheeses which normally have to be recoated several times.

Paradip Nowax is a 100% vegetable-based cheese wax with very good properties. All specially selected raw materials are derived from sustainable vegetable sources and are GMO free and mineral oil free.

Because of its natural image and the growing interest for the use of renewable resources, vegetable based cheese wax is now increasingly gathering interest and use for other cheese types.

Paradip Nowax is applied on the cheese by immersing the cheese in the Nowax cheese wax at a temperature of about 80-120˚C. Applied weight depends on the shape of the cheese and the desired protection. Due to the different congealing and crystallization behavior of vegetable waxes compared with traditional waxes machine setup and operating conditions need to be adjusted.

With the in-house knowledge and capabilities to develop and produce pigment and dye concentrates, Paramelt has succeeded in bringing colored vegetable-based cheese waxes to market. We can now also offer yellow, orange, red and blue vegetable waxes.

Ever since the first EPDM roof coverings appeared on the European market more than 40 years ago, Paramelt has been supplying adhesives to fix them in place.

Since then, the single-ply roofing market has evolved significantly. There is now a much more diverse range of potential membranes available to the contractor, including PVC, ECB, EVA, PIB, FPO/TPO and Hypalon coverings. In parallel with the technology evolution, Paramelt has been continuously developing its range of moisture curing adhesives to provide optimal bonding between the different membranes and roofing substrates. In order to ensure that roof assembly is correctly constructed, using the required combination of adhesive and membrane, Paramelt commonly supplies its products to market via the roofing materials manufacturers, often branded as a private label product.

This close partnership with the membrane producers allows us to develop beyond a generic adhesive for a specific membrane material. For every producer we are able to develop a specific adhesive, that is fully optimised to achieve the best performance for each specific material formulation and product construction. For example, each individual EPDM producer needs their own tailored adhesive to get the best performance from their system.

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comprehensive product range

Paramelt offer a full range of bespoke products for the following materials:

  • Specific products on naked EPDM
  • Low solvent-based and solvent-free products
  • Fleece-backed membranes, specific products for Full bonding or Partial bonding
  • Fleece-backed membranes, specific products for:
    • Thin fleece and so more plasticizer resistance
    • Specific products to fleece-backed EPDM

Our PU adhesives have a low total solvent content or are completely solvent-free. Our solvent-based adhesives are free of toluene and methylene chloride.

Our standard program is recommended for one side application on flat surfaces from horizontal up to an angle of 20° inclination, using typical planar membranes. Products can also be used for ridge application, where roller-applied pressure is required to ensure effective spreading of the adhesive in order to achieve a full bond. We do not recommend spray application for polyurethanes.

Depending on the specific application and the type of membrane, the following properties of the adhesive are more or less critical:

  • Initial strength
  • Aging (strength)
  • Open time
  • Cure time
  • Tack, green strength
  • Viscosity

Many applications require the functionality of a wax into a water based formulation, such as water based flexible packaging coatings & inks, paints, lacquers and polishes, leather & textile treatments, fiber sizing agents, glass & ceramic bottle and jar treatments.

Paramelt have a comprehensive manufacturing capability for the production of wax emulsions and polymer dispersions, encompassing atmospheric and pressure emulsification, high-pressure homogenization, continuous mechanical dispersion and high shear mixing.

Through our activities in water based coatings and adhesives we also have extensive mixing and blending facilities for water based systems, which enable us to incorporate our wax, and polymer emulsions into formulated aqueous blends where required.

Although we are not strongly active in the mainstream wax emulsion market, we have developed and do supply an extensive range of wax emulsions to meet bespoke customer requirements. Within this range of products, we can offer anionic, cationic, nonionic and mixed surfactant systems across a broad range of wax families including:

  • HDPE and LDPE wax emulsions (oxidized and non-oxidized)
  • MA grafted PP wax emulsions
  • Montan and carnauba wax emulsions
  • Paraffin and microcrystalline wax emulsions
  • EAA and EVA wax emulsions
  • Fatty acid and vegetable wax emulsions

Microcrystalline waxes are higher molecular weight mineral hydrocarbons and tend to be at the upper end of the typical melting point range. Depending on the source and processing of the wax significant differences in chain morphology are apparent providing waxes that can vary from hard high melting (up to 90⁰C) materials to softer and more flexible types with melting points as low as 65⁰C.

In addition to a longer chain length than paraffin waxes, the microcrystalline waxes tend to contain more irregularities in the molecular structure. These irregularities have a significant impact on the ability of the wax to crystallize which in turn influences the crystal size (from which the name ‘microcrystalline’ is derived) as well as the overall degree of crystallinity. The final flexibility of the product is strongly influenced by this morphology, which provides for a great diversity of material characteristics to meet the needs of very many different applications.

Our primary specialism lies in the fields of mineral hydrocarbon waxes, both petroleum based waxes such as microcrystalline, paraffin and intermediate waxes as well as the synthetically produced Fischer-Tropsch waxes. In addition to the mineral waxes we work extensively with naturally sourced materials such as vegetable waxes, carnauba wax and beeswax, especially in fields such as cosmetics & personal care, cheese waxes and flexible packaging grades.

Paramelt have an extensive and in-depth understanding of molecular characteristics vs wax performance requirements. We are able to source a comprehensive range of microwaxes as well as tailoring blends to deliver the targeted requirements for most applications, including chewing gum, cosmetics & personal care and adhesives and can work with you to develop the optimum material for your needs.

We produce under highly controlled GMP conditions certified to FSSC 22000 standard.

Some of our key standard microcrystalline waxes are:

ProductDrop melting pt (⁰C)Congealing pt (⁰C)Pen @ 25 ⁰C (dmm)Visco @ 100⁰C (mPa.s)Colour ASTM/visual
Paramelt HMPtypical 8982 - 868 - 1811 - 16typical Offwhite
Microwax ZG78 - 8673 -7922-3210 - 160.0-0.4
Microwax 1335976-8470-7620 - 3011 - 160.0-2.0
Paramelt LMPtypical 6862 - 6620 - 3511 - 16typical Yellowish

This short listing is intended to provide an illustration of our extensive range of grades.

The Basic-Clean process is best suited to customers with high filler content waxes. The process limits loss of volume by keeping the majority of the filler material in the wax, while removing the refractory contamination and water.

This process is primarily suited for customers that are pouring non-reactive metals as the residual ash content will be higher than a fully recycled or virgin wax product. The high yields of the process are useful for keeping costs low for very price sensitive markets.

Atmospheric ozone attacks the double bonds of unprotected rubber rapidly, forming an unstable structure known as molozonide. This is the first destructive step because a chain has been broken. This localized surface attack makes ozone degradation visible as surface cracks perpendicular to the direction of stress.

When articles are exposed to tensile strain greater than a threshold value during exposure, cracks grow continuously at a constant rate. The rate of ozone degradation is proportional to the ozone concentration and accelerated by rise in temperature.

Incorporated during rubber compounding, blended waxes, carefully formulated with paraffin and microcrystalline waxes of the right molecular weight distribution will migrate to the surface of the rubber article after vulcanization to form a thin protective film which acts as a barrier for optimum ozone protection.

This protective film of anti-ozone wax:

  • is thin, non-crystalline and reasonably flexible
  • assists the transport of chemical agents (anti-ozonants) from inside of the rubber articles to the surface
  • prevents water soluble rubber chemicals (in predominantly stressed articles) from being washed out

For any given wax in a specific rubber compound, there is a marked dependence on migration rate and generally, a peak migration temperature is found. As a result both temperature and rubber formulation are critical factors affecting wax performance. Therefore, to achieve long-term protection across a given temperature window, it is necessary to build a suitable blend of waxes to provide the required migration at different time and temperature intervals.

It is therefore critical to define the expected operating temperature environment as well as the time scale over which protection is required in order to accurately formulate the required wax package.

Paramelt offers a comprehensive range of Okerin anti-ozone waxes, formulated to provide optimal performance at different operating temperature ranges in a number of different rubber systems.  These products are used by a vast majority of global tire manufacturers and are known for their consistent quality and performance.

The standard products cover a number of typical operating environments, such as:

  • broad temperature range protection
  • high temperature range protection
  • low - medium temperature protection
  • medium - high temperature protection
  • moderate temperature, long service life performance

These products are able to cover the majority of typical tire applications encountered but we have the knowledge required to develop bespoke products for your specific requirements should this be needed.

The Dilavest™ L linear grades are most commonly used in domestic applications for the regulation of radiator valves and control of heated water for domestic use, for example shower and mixer taps.

The standard grades are Dilavest L 0-30 for heating and Dilavest L 30-60 for hot water applications.

Customised linear grades can be developed to customers’ requirements.

This 1K polyurethane (ready to use) adhesive is a solvent-free, moisture curing product and is suitable for virtually all types of insulation materials currently in use, as well as for a wide range of substrates.

These substrates can be coated profiled metal, metal sheeting, bituminous covering, concrete and wooden sections such as underlayment, plywood and chipboard. Insulation materials can be expanded or extruded polystyrene, polyurethane, poly(isocyanate), mineral wool or expanded perlite.

Paramelt’s Dynol roof insulation adhesives are highly foaming products, specifically designed to allow the levelling out of irregularities up to 5mm in size, between the substrate and the insulation material.

The adhesive is permanently elastic and as a result is readily able to absorb significant movements in the roof structure due to thermal or mechanical influences.

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Insulation adhesive properties

The adhesive is permanently elastic and as a result is readily able to absorb significant movements in the roof structure due to thermal or mechanical influences. The following properties of the adhesive are important.

  • Gap-filling (foaming) properties
  • Initial strength
  • Open time
  • Cure time
  • Flexibility adhesive layer
  • Aging

The adhesive is permanently elastic and as a result is readily able to absorb significant movements in the roof structure due to thermal or mechanical influences. The following properties of the adhesive are important.

  • Initial strength
  • Gap-filling (foaming) properties
  • Open time
  • Cure time
  • Flexibility adhesive layer
  • Aging

Waxes are used in combination with other particular additives such as carbon black to modify explosive compositions to desensitise both press- and cast-loaded explosives. The waxes act as an explosive binder but also provide for lubricity and heat-shielding in processing and storage environments. The key thermal requirement of an effective desensitizer is its capacity to absorb significant heat load at or above ambient temperatures. Therefore, waxes can be selected on the basis of heat capacity, melting enthalpy and melt point temperature (above which the wax is no longer effective).

Ozokerite waxes were used in cosmetics until the mid 20th century. A product originating in Eastern Europe from bituminous coal and having a relatively high melt point, they found usefulness in many application including cosmetics. With the improved availability of petroleum waxes, the darker color, stronger odor and contaminants present in Ozokerite caused them to fall out of favor. Today, Ozokerite waxes are designed mixtures of linear and branched hydrocarbon waxes. Mimicking the early traits of Ozokerite waxes, but also giving more range and flexibility in performance.

Used in stick products to prevent premature softening and melting originally. Also very useful in creams due to their thickening and stabilizing properties. Paramelt offers a broad range of Ozokerite type waxes. Each one designed to maximize the impact and performance needed, and to maintain the highest level of consistency.

For those requiring a hot melt with a broader operating window compared to the EVA-based products, we offer our Plastomelt Plus range. These products have more flexibility and cold temperature resistance, but also withstand high temperatures better. A higher level of specific adhesion helps dealing with coated or varnished substrates.

Thanks to our global presence we are able to maintain a comprehensive, worldwide raw material sourcing network

Our size enables us to take advantage of scale economies in strategic raw materials

We can provide full service for specialties e.g. small batches and unique raw materials as well as large volume high throughput processes

As a large sized, privately owned company we have the independence and autonomy to enable us to invest in process modification where needed.

Our Latyl™ water-based synthetic, hybrid and starch adhesives provide a complete range of labelling grades for all glass and PET requirements, whether one-way or returnable using paper and aluminium labels, neck foils and cap seals.

Wax ribbons
Wax ribbons form the largest segment in the thermal transfer market. These ribbons are widely used in combination with paper based or paper like substrates, where substrate adhesion is relatively straightforward and long-term durability is not specifically required for applications such as ticketing, address labelling and FMCG.

In these applications, the wax ink is typically based on a blend of mineral, synthetic and natural waxes to offer control of melting behavior (print head temperature), flow and setting, adhesion and robustness of the final image against abrasion and thermal exposure. Tackifier resins are often incorporated to boost cohesion and assist with specific adhesion requirements.

Wax/resin ribbons
For applications requiring additional durability, increasing levels of resin and natural waxes are used, and at the upper end, polymers such as EVA may be introduced, in order to boost the internal cohesion of the formulation as well as the scratch and rub resistance. Critical applications include examples such as pharmaceutical and medical labels, blood bags and food packaging, where traceability must be assured.

In addition to the sourcing and modification of base raw materials, Paramelt are able to develop and produce bespoke blends of the key components in wax based TTR inks, either as a concentrate for subsequent dilution in the customers’ facility or as a ready to use product recipe.

Paramelt also have a dedicated color concentrate facility, allowing for the controlled dispersion of critical pigments in vegetable and mineral media to complement its wax blending capabilities.

Paramelt’s manufacturing facilities are able to handle materials across a broad viscosity range from 1 to 1 million mPa.s and are operated under ISO and GMP conditions. In addition to the highly controlled production environment, the operation is supported by well-equipped, quality and analytical laboratories for optimum characterization and control.

Please contact us to select the right product for your process and performance requirements.

Dynol solvent-free 2K PU adhesives require the thorough mixing with a specified type and amount of an isocyanate hardener during the sandwich panel production process. The combination of the polyol and the hardener enables the adhesive layer to build up to the final bond strength.

Because a 2K PU system provides full control of the curing process, the adhesive system is suitable for a much wider range of sheet and core materials.

Depending on the combination of polyol and hardener, it is possible to formulate defined open time and setting speeds. This allows for use on high-speed, continuous production lines. Therefore, in many cases Paramelt is formulating tailored products for a particular customer process and substrate combination.

The Dynol™ range of 2K PU adhesives consist of numerous variants for both standard and special applications, such as

  • Long pot-life
  • Difficult surfaces (e.g. plastics, metals and coated steel)
  • Fast setting
  • Fire retardant products (A2 sandwich panel)
  • Customer specific product and process combinations

Depending on the type of sheet and core materials and application method, the following properties of the adhesive are important:

  • Open time
  • Pot-life
  • Fixed or adjustable mix ratio
  • Viscosity (polyol plus isocyanate)
  • Press temperature
  • Application method and setup
  • Substrate types (core and sheet materials)

The Paraflex™ L and Paraflex™ LT range of laminating waxes includes a number of different grades to address various specific requirements within the flexible packaging industry.

The standard Paraflex L range provides laminating waxes for use with many different substrates including paper, aluminium foil, paperboard, cellophane and plastic films (PE, PP, PS, PET, PLA) depending on the target complex. Wax laminated structures are used in a wide variety of end-use applications such as butter and margarine wrappers, confectionery packaging, biscuit and cheese wrappers, bouillon, soup and stock cubes.

Variants in the Paraflex™ L range are designed to deliver a number of specific performance requirements:

  • Specific substrate adhesion
  • Lamination bond strength
  • Fat & moisture resistance
  • Heat resistance
  • Application temperature
  • Good organoleptics for sensitive products

The Paraflex™ LT range has been specifically developed to offer effective lamination and subsequent controlled delamination in cap-seal liner wads.

Paramelt offers a number of products balancing cost and performance in relation to die cutting resistance, heat resistance, bond strength and subsequent release. Liner wads are widely used as an induction sealable closure element in combination with screw caps. Typical examples are lubricants and household chemicals, cosmetics and pharmaceuticals, instant-coffee jars and high-fat spreads.

In addition to cap-seal liners the ability of these waxes to ‘strike-through’ the paper-based substrate has also found application in heat-sealable laminates, for example between silk paper and aluminium foil.

Paramelt’s reclaim and system pattern waxes offer significant input cost advantages to the foundry. Using our Tech-Clean™ process to scrub recycled wax of metallic residue along with our state-of-the-art filtration system, the wax can be used similar to virgin pattern wax.

The experience Paramelt has in the reconstitution of waxes over the last 30 years, means we can provide a near virgin wax performance with our high quality system waxes. We have the ability to make virtually any pattern wax as a system wax by working with the individual foundry to utilize their scrap wax as a component of the system wax.

We use the same high-quality raw materials as our virgin pattern waxes to reconstitute the reclaimed wax to the highly repeatable performance needed in a pattern wax. Our line of reclaim pattern waxes are designed for foundries that have extremely cost sensitive finished products and where tolerances do not have to be quite as tight as with virgin waxes.

The reclaim and system pattern waxes have advantages where:

  • material costs are more critical
  • reducing disposal costs at the foundry is important
  • disposal of spent wax is not an option
  • companies want to reduce their environmental impact

Paramelt’s utility and patching waxes are for filleting or repairing wax patterns that may have been damaged after injection. We offer a number of different grades that have varying hardness, spreadability and workability. The selection of the right patch or utility wax will maximize the efficiency in repairing damaged patterns and reduce the labor time required.

Our skilled team will assist in selecting the right patch wax that will give the best result for each customer’s specific needs. All of our patch and utility waxes are completely compatible with any pattern wax used in the industry and all burn out very cleanly.

The distinct taste of medium-hard cheese like Gouda and Edam is created by the ‘natural ripening process’. The key in creating the specific taste of the cheese and consistency of the rind is the cheese coating used. The cheese is not completely sealed by cheese wax or foil, but coated with a water based dispersion coating named Paracoat™. These coatings give a controlled release of moisture from the cheese and help to prevent mould growth on the cheese during the ripening process. This aqueous coating technology has proven its effectiveness over more than 60 years.

icon-cheese

Paracoat film properties

Paracoat™ cheese coatings give the cheese a transparent and glossy film with the following properties:

  • reduction of moisture release without influencing the taste;
  • gas permeability (e.g. CO2, O2, etc.);
  • improved appearance
  • protection of the rind against mechanical damage & mould forming;

Paracoat™ cheese coatings are synthetic copolymer based, aqueous dispersions. These products are free from plasticizers and can be supplied:

  • in different viscosities depending of the coating process used;
  • with different amounts of anti-fungal agent (natamycin);
  • in natural as well as various different colors.

In general Paracoat should be applied immediately after the cheese is taken out of the final brine bath (some cheese types like Edam are coated after 48 hrs), although care needs to be taken that the cheese is as dry as possible before coating. The amount of coating required depends specifically on both the type and size of the cheese. A 12 kg Gouda cheese for example might use between 10 g and 30 g for a one-sided treatment. However, for the first treatment the coating weight is generally lower in order to minimize drying time.

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Paracoat coatings

The number of Paracoat™ treatments required to obtain a good result depends on factors like:

  • Temperature and relative humidity of the storage warehouse
  • Type of Paracoat cheese coating and amount of anti-mould agent used
  • Fat content of the cheese
  • Target age of the cheese (frequency of coating decreases with the age).

Contact adhesives are applied to both surfaces of materials to be joined and can be used in a wide range of applications providing instantaneous bonding and high adhesive strength. Paramelt provide a comprehensive range of products encompassing EPDM, PVC, ECB, EVA, PIB, FPO/TPO and Hypalon single-ply membranes.

Vertical bonding
Our range of Dynol contact adhesives are primarily used in highly inclined or vertical bonding applications, where direct bonding is required to hold the membrane in place. Typical examples would be upstands on the flat roof and frame elements on the building façade.

Overlap bonding and membrane splicing
In addition, the use of two-side contact adhesive bonding is extremely effective for overlap bonding and membrane splices.

Horizontal application
Dynol contact adhesives can also be used for horizontal membrane bonding to provide added robustness and security.

Our high-solids, Dynol contact adhesives can be used with a wide range of application methods such as, roller or brush applied or increasingly in combination with various spraying techniques. The use of pressurised canisters to ease application and increase productivity during installation of large surfaces is increasing.  Our unique product formulation enables use not only with compressor-based spraying equipment, but can also be supplied in pre-pressurised canister or aerosol packaging units.

In order to ensure that roof or façade assembly is correctly constructed, using the required combination of adhesive and membrane, Paramelt commonly supplies its products to market via the roofing and façade materials manufacturers, often branded as a private label product. This close partnership with the membrane producers allows us to develop beyond a generic adhesive for a certain membrane material.  For every producer we are able to develop a specific adhesive, that is fully optimised to achieve the best performance for each specific material formulation and product construction. For example, each individual EPDM producer needs their own tailored adhesive to get the best performance from their system.

Through our extensive knowledge and experience we are able to provide a specific contact adhesive for every type of naked EPDM. Our usual model is to develop, together with the EPDM manufacturer, a bespoke adhesive in order to guarantee long-term system reliability. In addition to EPDM we also tailor specific products for modified bitumen, TPO, PVC and other singly-ply membrane materials.

Our proprietary formulation technology allows us to achieve very high dry-solid content in our solvent-based contact adhesives. Typically, we can offer as much as twice the solids content of competing technologies, which allows for a significant reduction in the required adhesive consumption per m2/sq.ft and gives a substantial lowering of overall VOC emission levels.

Depending on the specific type of membrane and application method employed, the following properties of the adhesive are of critical importance:

  • Green-bond
  • Rapid strength development
  • Aging resistance (strength)
  • Heat resistance
  • Open time
  • Viscosity

Paraffin waxes are distinguished by their highly linear structure and contain a proportionately lower content of irregularities in the molecular chain. As a result the paraffin waxes crystallize rapidly and easily to form large macro-scale crystals which can be up to millimeters in size. Consequently, pure normal paraffins tend to be hard, brittle materials, which can lead to characteristics such as high gloss, excellent moisture barrier and fast congealing.

Refineries fractionate the waxes using different processes and operating conditions in order to separate different cuts of material from the overall paraffin distribution in the base feedstock. Usually paraffin wax cuts are sold according to the measured congealing points of the fraction. However, depending on the process, operating conditions and feedstock used the resulting products will possess dramatically different molecular characteristics.

Depending on the origin of the base crude, there will be a different overall distribution in carbon chain length which will define the relative ratios of the paraffin fractions which are available.

Therefore, in many cases different streams will be blended together in order for the refinery to consistently achieve the target specification or to provide additional quantities of a fraction, which may be ‘short’ in the available feedstock. This can have a substantial impact on critical physical characteristics.

Our core competence is a comprehensive understanding of the key characteristics of paraffin wax, depending on the supplier and feedstock base and how these aspects link through to critical application properties.

Varying molecular distribution btween single cut and blended paraffins with the same melting point

Building on this knowledge we understand how to ‘assemble’ the right characteristics in the paraffin wax independent of where the wax is coming from, which allows us to ensure long-term quality, security and consistency of supply.

Dilavest™ C grades are used in a number of sectors for control in the ambient temperature range for various control applications such as refrigerant systems, building ventilation and automotive air intake, for example carburetor or fuel injection systems.

Dilavest™ C grades are n-alkanes suitable for controls in a temperature range from -18 to +40oC.

Coating techniques are known for the pre-treatment of explosive material particles prior to forming, casting or pressing. By providing a controlled, homogeneous coating on each individual particle, the effectiveness of the wax can be substantially enhanced giving benefits in terms of explosive capacity (packing density) and safety/initiation energy (e.g. falling hammer test).

The Excelta™ metallocene polyolefin based hot melts have a number of distinct advantages over conventional EVA or EnBA based hotmelt adhesives, offering significant benefits in relation to the costs, quality and safety of your operations:

Machine operation benefits

  • Optimal jetting performance for consistent application
  • Excellent thermal stability, no char or discoloration
  • Outstanding viscosity stability, consistent running

Application benefits

  • Reduced adhesive consumption per pack
  • Tailored adhesion even to most difficult substrates (e.g. PP, PET, UV varnished)
  • Wide service temperature range offering high and low temperature resistance
MACHINE OPERATION BENEFITS  
FeaturesBenefitsSpecifics
Reduced adhesive consumption10% lower density and enhanced bonding performance allow significantly lower consumptionDirect adhesive cost saving typically 20-40%, depending on application.
Excellent thermal stabilityNo gel and char formation resulting in reduced maintenance requirementsReduced maintenance costs by e.g.20%. Tank, hose, filter, nozzles
Outstanding viscosity stabilityAdhesive runs continuously well without need for adjustment of machine settings • Reduced operator intervention needed.
• Machine can be set for optimal adhesive dosage and placement.
Optimal jetting performanceConsistent bead size and placement without stringing or tailing. • Reduced machine downtime for clean ups
• Improved package appearance
Volatile freeNo generation of odour or fumesImproved working environment
Low melt gradesAchieve required bonding performance and machineability from application temperatures as low as 100°C• Reduced energy consumption
• Reduced line start up time
• Reduced hazard exposure
APPLICATION BENEFITS  
FeaturesBenefitsSpecifics
High purity raw materialsBetter credentials for food packaging applications• Enhanced package appearance
• Direct food contact approval
• Reduced organoleptic impact (pass the Robinson test)
Wide service temperature rangeFinal bonds are able to resist to both high temperatures as well as deep freeze conditions• Improved security in the supply chain, reduced complaints.
• Potential to reduce the number of hot melts in use
Effective bondingBonds to a wide range of difficult substrate materials.Grades covering plain, printed, coated and lacquered boards

We have implemented coherent Quality Systems across our global operations to ensure compliance with all market required standards (our certifications)

  • Europe  : ISO 9001:2015, FSSC 22000 (Heerhugowaard), Halal and Kosher capabilities
  • USA       : ISO 9001:2015, FSSC 22000 (planned 2020)
  • China    : ISO 9001:2015, TS 16049, FSSC 22000 (Wang Jiang Road)

2017 Customer survey results on customer satisfaction

  • Europe  : 8,2
  • USA       : 8,9

In 2018 Paramelt was awarded the Customer Experience Award for highest NPS (Net Promotor Score) in the sector Manufacturing & Trade

Paraffin wax is primarily a linear hydrocarbon wax. It has a relatively low oil binding capacity compared with microcrystalline wax but is an excellent gelling and structuring material due to its high crystallinity. It is stiffer than microcrystalline wax and film forms well. It forms large crystals and enhances gloss and slip very effectively.

Paraffin waxes are typically refined mixtures of solid linear hydrocarbons composed of a C20 to C45 chain length. Paraffin waxes used in cosmetics usually melt between 50-65°C. Paramelt’s paraffin waxes have tightly controlled ratios of n-alkanes to branched alkanes (iso-alkanes). Paramelt understands highly consistent composition as being the most important characteristic as it relates to performance, not just melting point.

Our Plastoflex™ range consists of rubber-based pressure sensitive hot melts for horizontal and vertical labelling of cans, jars or bottles at all speeds, whether it’s cut and stack or roll-fed labels.

Enziflex and Latyl water-based adhesives (dispersions) bonding process takes place slowly because of the water being lost, either by evaporation or absorption by the substrates. Dispersion adhesives are especially suitable for bonding high-area laminated systems made of water-permeable materials.

For dispersion adhesives the open time is determined by the temperature, the thickness of the adhesive film and the absorption properties of the substrates. The substrates are then pressed against each other.

Paramelt provides a tailored range of water-based adhesives to many areas of markets.

  • Gypsum
  • Wall construction
  • Wood
  • Textile
  • Wall covering

Depending on the application and market the following properties of the adhesive are important.

  • Adhesion to the substrates
  • Open time
  • Drying speed
  • Curing speed
  • Viscosity & rheology
  • Water resistance
  • Corrosion properties
  • Stiffness

The Aquaseal packaging coatings range is based on a unique, proprietary, high-solids mechanical dispersion technology. This platform enables the production of water-based dispersions of high molecular weight, thermoplastic polyolefins and styrene block copolymers in water.

These unique polymer dispersions bring significant advantages over existing solvent-based lacquers, water-based emulsions and extrusion coatings for the conversion of paper, film and foil.

A number of key applications have been developed for each of the principal flexible packaging substrate types.

Paper coatings

A number of Aquaseal grades are available, based on extrusion grade polyolefins such as Surlyn™ ionomers, EAA, mLD-PE, PP and EVA. These materials offer a number of potential benefits such as heat sealability, moisture barrier and recyclability.

In contrast to typical paper coatings based on water-based emulsions, such as acrylic and PVDC, Aquaseal functional coatings offer superior humidity resistance and hot-tack performance, equivalent to extrusion coated papers.

A range of Aquaseal grades are available for:

Heat sealable papers
for flexible packaging

  • Full surface coating
  • In-register patterned coatings

Barrier coatings
moisture & grease resistance

  • MVTR & Cobb
  • Kitt & OGR

In-mould labelling
heat activated coatings

  • injection moulding IML-I
  • thermoforming IML-T
  • blow moulding IML-B

Film coatings

Aquaseal also find application in surface coatings of polymeric films, such as BOPP, BOPET and cellophane to provide targeted sealing performance such as

  • low seal initiation temperature (LTS)
  • high seal integrity (hermeticity)
  • sealing against specific substrates e.g. glass, polypropylene
  • enhanced hot-tack
  • in-mould labelling grades for PE, PP, PS and PET
  • primers

Foil coatings
A full range of functional coatings have been developed for aluminium foil as an alternative to the traditional solvent-based lacquers, extrusion coating or laminating solutions.

Products are available for

  • Heat sealable chocolate foils
  • Heat seal lidding
  • Induction sealing
  • Pharma blisters
  • Processed cheese foil
  • Butter foils and laminates

Aquaseal coatings offer a number of significant advantages over existing solutions.

Food safety

  • chlorine free
  • BADGE (epoxy) free
  • aromatic solvent free
  • monomeric plasticiser free

Chemical resistant against

  • fats & oils
  • water
  • acids

Performance benefits

  • no transfer of odour or taint
  • seal through contamination
  • excellent hot tack & seal integrity
  • processable by common printing techniques

Paramelt’s range of Dynol primers are applied onto the substrate surface in order to provide a controlled and receptive surface for subsequent bonding. The Dynol primers are first applied to the target surface and after drying, provide a tack-free working surface for further installation operations.

Dynol primers are most commonly employed to provide a suitable surface for the bonding of self-adhering membranes, but are also used in a similar function for vapour-control layers and adhesive tapes. Dynol primers can be especially important when using self-adhering materials in low temperature environments, where it is required to compensate the low-tack performance of the self-adhesive material.

Dynol primers may also be required for highly porous concrete to close and stabilise the surface. Additionally, for some difficult to adhere surfaces, such as plastic-coated steel, a primer may be required to provide an adhesive receptive surface for subsequent bonding with the required typical 1-K PU roofing adhesives.

Typical surface preparation applications employing Dynol primers:

  • Self-adhering membranes
  • Self-adhering vapour-control layers
  • Adhesive tapes
  • Porous substrates
  • Coated substrates
  • Low temperature conditions

We provide a broad portfolio of Dynol primers designed to match the particular pressure sensitive adhesive (PSA) employed on the self-adhering membrane, vapour-control layer or tape. We also provide a number of Dynol grades to tackle different surface environments, such as concrete or coated steel.

Our proprietary formulation technology allows us to achieve high dry solid content in our solvent-based primers, which allows for a significant reduction in the required primer consumption per m2/sq.ft and gives a substantial lowering of overall VOC emission levels.

Our high-solids, Dynol primers can be used with a wide range of application methods such as, roller or brush applied or increasingly in combination with various spraying techniques. The use of pressurised canisters to ease application and increase productivity during installation of large surfaces is increasing. Our unique product formulation enables use not only with compressor-based spraying equipment, but can also be supplied in pre-pressurised canister or aerosol packaging units.

Depending on the type of membrane and application, the following properties of the adhesive are important:

  • Good surface coverage
  • Dry film
  • Long working time
  • Direct adhesive anchorage
  • Aging resistance (strength)
  • Heat resistance

As the name suggests the description is a ‘catch all’ categorization to use to encompass all mineral wax fractions, which fall outside the recognized description of a paraffin or a microcrystalline wax. As a result of this loose definition, this category of waxes can vary tremendously in terms of melt point, viscosity and crystallinity balance.

Paramelt have access to a diverse range of such products and also know how to put together an equivalent balance of properties via numerous alternative formulating routes.

Dynol paste grades are solvent-bourne paste adhesives primarily used for the vertical bonding of EPDM membranes in building-façade applications. Our products are suitable for bonding to most substrates including metal, wood, aluminium, concrete, PVC and glass. For very open, porous or difficult to bond surfaces, a suitable Dynol primer can be proposed to ensure effective bonding is achieved.

Dynol paste adhesives are supplied in 600 ml aluminium sausage packaging units for use in standard gun applicators. Alternatively, they can be supplied in larger volumes in drums for contract packaging to alternative specifications.

Paste adhesives are generally hand-applied as a thick bead, typically in the range of 20-50g per linear meter, depending on the weight (thickness) of EPDM to be bonded and the size of effective bonding area required. Various grades are available depending on the specific EPDM to be used.

In addition to the standard solvent-based grades, recent developments in polymer technology have allowed the development of high-performance, solvent-free MS adhesives. These provide equivalent performance whilst bringing the benefits of PU and VOC-free operation in relation to working environment and atmospheric emissions.

Depending on the type of membrane and application, the following properties of the adhesive are important:

  • High ‘green tack’
  • Rapid strength built
  • Long shelf life
  • Aging resistance (strength)
  • Heat resistance
  • Easy application

Long chain paraffinic molecules can also be synthesized through the Fischer-Tropsch gas-to-liquid (GTL) process, resulting in relatively high melting and hard waxes. Originally developed in Germany as an alternative route to produce automotive fuel from gasified coal, the process for a long time was only practiced in commercial volumes in South Africa and Malaysia. Over recent years there has been a significant growth in production of synthetic fuels and installation of major new GTL fuel plants in the Middle East and China.

Along with the fuel, high molecular weight waxes are produced in the process and need to be removed before sale. In their crude state these FT waxes can vary dramatically in terms of stereoregularity and molecular weight distribution. The crude waxes are typically fractionated into tighter cuts to offer a number of standard melting point grades.

Although products can have a comparable melting point, the detailed distribution of the wax can vary dramatically based on both the source material and the fractionations process. Paramelt know all the available feedstocks and have established their key features and differences. We are able to select, formulate and further refine these waxes to achieve specific characteristics and application properties, thereby creating novel and unique grades of FT wax.

Through our global sourcing position and significant capacity investments Paramelt have established the necessary infrastructure to bring these exciting new wax types to market.

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The Paracera® N-line is a unique range of waxes. Specifically designed with controlled chemistries and molecular weight distribution to optimize the delivery of their properties.

Paracera® N-line grades are produced using a proprietary technology within tight control limits offering an exceptional degree of product consistency and performance repeatability.

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Paracera™ N waxes

Due to their targeted design, the Paracera N-line waxes are significantly more efficient at delivering property modification than conventional waxes. As a result, Paracera N-line waxes are used at much lower addition levels than alternative waxes to deliver the desired result batch after batch.

Key performance impacts

  • High degree of crystallinity and very effective nucleation agents
  • Very effective oil gelling & gel stability
  • Outstanding rheology control
  • Enhanced temperature stability
  • Improved slip modification
  • Fast phase change/short cycle times
  • Extremely high consistency & repeatability

Customized product offering

  • Multiple chemistry options
  • Controlled molecular composition
  • Tailored melting & congealing properties
  • Custom profiles in the range from 0°C - 140°C

In our Excelta™ range, we offer highly efficient, heat stable, staining-free hot melt adhesives for horizontal and vertical labelling of cans, jars and bottles. These polyolefin-based adhesives represent the latest technology in hot melt labelling applications.

Waxes are widely found in nature coming from both animal and vegetable origin. Natural waxes are composed of a group of materials, but their underlying wax composition typically are based on four main functional chemistries: fatty acids, fatty alcohols and esters as well as linear alkanes.

In contrast to mineral waxes, which are essentially pure hydrocarbons, the polarity of the natural waxes brings additional functionality to the formulator’s toolbox, imparting more effective emulsification properties as well as enhanced emolliency.

Today’s environmentally aware consumers seek out products based on renewable sources and more quickly biodegradable the traditional petroleum waxes. Paramelt offers an optimized line of pure natural waxes, focusing on natural wax blends to provide targeted functionality at more effective price points.

Beeswax
Beeswax is a natural secretion of honeybees. Natural beeswax has a sweet smell of honey and a yellow color, but can also be further refined to offer a white product. Beeswax is predominantly composed of fatty acid esters, but also contains significant proportions of free fatty acids and natural linear alkanes. This blend gives the wax a natural degree of polarity, which makes it an ideal emulsifier for use in creams & lotions and imparts emolliency in lipsticks and lip balms.

Carnauba wax
Carnauba wax is a natural product obtained from the processing of the wax secreted by the leaves of the Brazilian palm tree named as Copernica Cerifera known as the “Tree of Life.”  Carnauba primarily consists of aliphatic esters together with free fatty acids and alcohols in the C26-C30 range. This balance of components makes carnauba the hardest natural wax available, so it is widely used to create hardness and gloss in stick products and mascaras. Carnauba has a relatively high melting point around 85C, which also helps to provide thermal stability.

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