EPDM Archives

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Available in Pints (24/cs), 1 Gallon cans (6/cs), 5 Gallon pails

Our EPDM Roof Tape Primer is a clear product specifically formulated as a primer for single ply membranes before the installation of any and all tape products such as seam, flashing and cover tapes along with pipe boots and patch disks . It is a clear product when dried allowing for use with white and black membranes. Tape Primer must be used prior to the installation of all tape products manufactured by Seal Trust™.

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Cover Tape

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Available in black or white

Seal Trust™ EPDM Cover Tapes are cured EPDM cover rubber with specially formulated butyl mastic extruded together for typical roofing applications such as cover for most metal terminations including gravel-stops and drip edge, and extensively used for horizontal patching, seam repairs and seam overlays. This peel and stick product has long term heat and chemical resistance and gives Seal Trust Cover Tape the ability to remain flexible in harsh conditions. Surpassing the industry standards for tack and shear strength our cover tape products provide superior holding power for long life and high durability. Industry standard roofing membrane cleaners and primers must be used to clean the membrane before application. Used with EPDM, TPO, and some PVC roofing membranes

Application Instructions:

Always clean and prime membrane using roofing industry standard products for tape applications such as Seal Trust™ F-Primer or Low VOC Tape Primer. Allow primer to dry before installing tapes. Cover Tape is not for use in flashing applications. Product is a peel and stick cured cover tape. Used for covering metal termination bars, drip edge, and/or all purpose bar in seam applications etc. Apply in primed area by peeling release paper off of 6-12 inches of tape. Stick the tape onto the membrane, while continuing to pull release paper off. Make sure you start on a straight line. Continue pulling release paper off as you move down the pre-primed area. Use sharp scissors for cutting the cover tape. Use metal seam roller with some force perpendicular to tape for proper adhesion.

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F-Primer Tape Primer

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Available in 1 gallon round paint cans (4 gal/cs)

F-Primer Tape Primer is designed for use with EPDM and TPO roofing installations to enhance the performance and bond of EPDM seam tape and TPO seam tape. This black tape primer requires initial stirring at the start of each day and periodically throughout the day. It is influenced by both temperature and humidity. Strong initial tack allows for immediate bond of tapes to membranes. This product is not intended for use in OTC states.

Application Instructions:

F-Primer should be stirred thoroughly prior to use and then scrubbed into the EPDM surface thoroughly using scrub pads such as Scotch-Brite pads. Change applicator pads frequently and cover an area in excess of the area to be seamed. The use of Seal Trust™ Splice Wash prior to application of this product is recommended on dirty, old membranes to remove all surface contaminations and enhance the performance and bond of EPDM seam adhesives and primers. When used with clean TPO, this primer is a cleaner and primer and the use of Toluene Splice Wash is not required. This product dries black use caution when using with white or colored membranes. Clean up with mineral spirits.

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Flashing Tapes

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Product Information:

Seal Trust™ Flashing Tapes are uncured EPDM rubber with specially formulated butyl mastic used in applications on roofs where pipes, stacks, vents, or corners require flexible flashing products to ensure no water infiltration into the roofing system. Flashing Tape allows molding or slight stretching of the material then slowly cures to form. With superior tack and peel strengths, our butyl mastic remains flexible in harsh conditions and gives a permanent water tight seal. Industry standard roofing membrane cleaners and primers must be used to clean the surfaces before application.

Application Instructions:

Always clean and prime membrane using roofing industry standard products for tape applications such as Seal Trust™ F-Primer or Low VOC Tape Primer. Allow primer to dry before installing tapes. Field flashing corners, stacks, vents, or other roofing installation procedures where material must be formed. Do not over stretch. Not for use in horizontal seam repairs. Application by experienced roofing professionals recommended.

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Lap Caulk

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Available in Black or White
Available in 10.5 oz. tubes

Product Information:

Our EPDM Lap caulk is available in 10.5 oz tubes in both black or white for use in single ply membrane applications such as EPDM or TPO. Standard caulk gun is required for application. Product should not be screed or smoothed after application. This caulk is meant to prevent water infiltration into seams and overlaps prior to the adhesive setting up. Usually 24-48 hours depending on temperature and humidity.

Application Instructions:

Our EPDM Lap Caulk is used when applying splice and/ or bonding adhesives where membrane is overlapped. Prevents initial moisture infiltration before the adhesives are set. Standard caulk gun required for use. Once plastic top is cut you must puncture the tube through the plastic top with a screw driver or long screw or nail to begin application. Do not screed or smooth caulk once applied. All seams that were glued or installed should be caulked at the end of each day.

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Latex Bonding Adhesive

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Available in 1 gallon cans or 5 gallon pails

Latex Bonding Adhesive Product Information:

Seal Trust™ Latex Bonding Adhesive is a water based adhesive used in adhering EPDM or TPO membranes to various substrates. Product goes on white and dries by evaporation to a clear film.

Application Instructions:

Each gallon covers approximately 100 square feet ONLY. Apply enough adhesive to roof substrate so that membrane will be coated by adhesive when rolled into it. MEMBRANE MUST BE LAID INTO WET ADHESIVE. Wrinkles may be brushed out while adhesive is still wet. ON HOT DAYS, THE ADHESIVE MAY DRY TOO FAST TO USE THIS PROCEDURE. If so apply a thin coat of adhesive to the roof surface and the back of the membrane. For highest initial bond strength join after film becomes tacky. Initial tests indicate that adhesives may be used at temperatures as low as 40F. DO NOT ALLOW MATERIAL TO FREEZE. Meets OTC VOC requirements.