roofing membranes

experience.performance. in the way our roofing adhesives keep your membrane safe & strong against the most extreme influences

1-C PU adhesives

The Dynol™ range of 1-C PU adhesives offers tailored solutions for partial or full-surface bonding of both EPDM and other fleece-backed membranes. These products are formulated and qualified for specific membrane grades.

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Contact and paste adhesives

The Dynol™ range of contact adhesives offers products for full surface bonding of EPDM, PVC and TPO for flat roofing, overlap-bonding and upstands. Dynol™ paste and MS paste adhesives are available for gluing EPDM strips in façade and window sealing applications.

Primers

Our range of Dynol primers offer tailored adhesives for the bonding to self-adhering membranes, vapour control layers and tapes. Primers for porous substrates, difficult to adhere materials and for low temperature application conditions.

paramelt products

our range of adhesive solutions for roofing membranes

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

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

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

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

Single ply roofing membranes

The use of single-ply membranes provide a complete roofing solution, which can be constructed in-situ on location. The roof comprises strong and flexible synthetic membranes, which are attached or bonded to the structural deck, using either mechanical fixings or adhesives. Paramelt offers a comprehensive range of adhesives for single-ply membrane bonding.

Single-ply roofing provides an attractive alternative to traditional bitumen covering with a number of significant advantages.

private label packaging

private label packaging
private label packaging

Paramelt has a long and successful history of supplying products across the construction sector, giving us extensive insight into the complex demands of this industry group. We are able to offer a number of standard, neutral packaging forms, which can be tailored to your specifications using your own labelling.

We have an established network of suppliers for both print and packaging materials. Together with our in-house expertise on material health and safety (CLP) and transport regulations, this enables us to manage the entire supply chain for bespoke product packaging.

Our standard packaging options are listed below, however the size and type of packaging can be adapted, if necessary to meet new demands.

  • 1 -30L rectangular tin cans
  • 1 -30L conical tin cans
  • 14 and 22L pressured canisters
  • 1L aerosol cans
  • 600 ml Aluminium sausages
  • 200 L drums

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Partnership and trust is our working model, backed by high quality, consistent and effective products , provided through our global manufacturing and supply chain networks.

We have a small and focussed direct sales organisation and rely on strong partners to complement our worldwide customer presence. If you feel our products and experience can add performance to your business, then please get in touch and discuss the possibilities.

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Below you find our main product leaflet for this market.

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Adhesives for roofing membranes and insulation
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