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S25 Splice Contact Adhesive

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S25 Splice Adhesive: A Dedicated EPDM Seam and Overlap Adhesive

S25 Splice Adhesive is a ready-to-use contact adhesive developed specifically for bonding overlaps on all types of EPDM roofing membrane. With a 44% solids content and a peel strength of 40 N/50mm² rising to 45 N/50mm² after ageing, this specialised roll adhesive is also suitable for bonding uncured flashing tape to cured EPDM, and is best used together with an EPDM seam sealer for a complete, watertight roofing detail.

Ready-to-use and fast drying
High initial tack and a very strong final bond
High solids content for a robust seam bond
Easy to apply with a brush or roller
DCM-free formulation

Looking for a Private Label Manufacturer for an EPDM Seam and Splice Adhesive?

As a dedicated manufacturer of EPDM seam and splice adhesives, we produce S25 Splice Adhesive as a fast-drying and reliable roll-applied adhesive for professional use in the roofing industry. It combines high initial tack with a robust seam bond, making it an ideal solution for roofing membrane suppliers and contractors.

Available in tins, S25 Splice Adhesive can be supplied fully under your own private label. From production and packaging to labelling and logistics, we offer a flexible solution tailored to your volumes, market and brand requirements.

MaterialSBR rubber
Processing temperature+5 / +40 °C
Temperature resistance-40 / +55 °C
Consumption80-90 g/m²
Minimum open time4-5 minutes
Maximum open time (working time)60 minutes
Solids content44%
Density865 ± 10 kg/m³
Peel strength (initial)40 N/50mm²
Peel strength (after 28 days / 50°C ageing)45 N/50mm²
VOC550 g/l

Solvent-based

S25 Splice Contact Adhesive

A ready-to-use contact adhesive purpose-built for bonding overlaps and splices on EPDM roofing membranes, ideal in combination with an EPDM seam sealer.

Ready-to-use and fast drying
High initial tack
Very strong final bond
High solids content
Easy to apply with brush or roller
DCM-free

Material SBR rubberProcessing temperature +5 / +40 °CTemperature resistance -40 / +55 °CConsumption 80-90 g/m²Minimum open time 4-5 minutesMaximum open time (working time) 60 minutesSolids content 44%Density 865 ± 10 kg/m³Peel strength (initial) 40 N/50mm²Peel strength (after 28 days / 50°C ageing) 45 N/50mm²VOC 550 g/l

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PRODUCT FAQ

Questions about S25 Splice Contact Adhesive

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Substrate advice, test reports or a custom formulation for your market.

+31 (0) 888 93 88 39

sales@zettex.com

How does private label work for an EPDM splice adhesive?

As the manufacturer of this EPDM splice adhesive, we produce it under your own brand name. It works in a few clear steps: together we select the right product and you test samples in your own application. We then customise the tin, the box and the label to your brand, with support from our in-house marketing team for the label design, and we take care of the technical and safety data sheets and the UFI codes. Finally, we produce, check every batch in our own laboratory and deliver on the agreed schedule.
Throughout the whole process you have one dedicated contact person. Private label is the core of our business, and our organisation and production are fully set up for it. We are happy to discuss your wishes and the possibilities.

What is the MOQ for an EPDM splice adhesive in tins?

For tins we are very flexible: we can supply this EPDM splice adhesive in private label from a minimum order quantity (MOQ) of just 100 pieces. Tins are usually fitted with a professional label; for very large quantities, the tins can also be screen-printed.

What is the S25 Splice Contact Adhesive designed for on an EPDM roof?

The S25 Splice Contact Adhesive is a ready-to-use EPDM splice adhesive for bonding overlaps on all types of EPDM. It can also be used to bond uncured flashing tape to cured EPDM. For a complete, watertight seam detail, it is best used in combination with an EPDM seam sealer.

How should S25 be applied to achieve a reliable seam?

Clean surfaces must be dry, dust-free and grease-free before S25 is applied evenly to both sides with a brush or roller, at a consumption of 80–90 g/m². Allow approximately 4 to 5 minutes’ flash-off time, depending on temperature, substrate and quantity applied, then join the overlap accurately within the open time of up to 60 minutes and press it firmly over the full surface. Avoid local build-up or heavy overlapping of adhesive, as a thick layer can considerably extend the open time.

What are the solids content and temperature limits of the S25 Splice Contact Adhesive?

The S25 Splice Contact Adhesive is based on SBR rubber with a solids content of 44% and a density of 865 ± 10 kg/m³. It can be processed between +5 °C and +40 °C and has a temperature resistance of -40 °C to +55 °C; it is not intended for bonds exposed to temperatures above +55 °C for prolonged periods. Note that its solvents may attack sensitive materials such as XPS, EPS and PVC, so a compatibility test is advised.