TPO Archives

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

Our TPO 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™.

TPO Roof Tape Primer Physical Properties:

Color: Clear to neutral
Viscosity (eps): #3 @ 20 rpm=200cps or less
Density (#/GAL.): 7.22# {caa914c204b1119fb3ddf612b08b76802b03c1f9b8e71b690c389a73edd07169}
Solids: 4.8
Flash Point (F): -25F TCC
Base: Synthetic elastomers, resin(s) and filler(s)
Solvent System: Aromatics and Aliphatics Clean-up
Solvent: Mineral spirits, VMP naptha or toluene
Storage: May be stored outside if protected from water. Packaging: Pints (24/cs), Gallons (6/cs), 5 gallon pails

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Cover Tape

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White Cover Tape

Seal Trust™ TPO Cover Tape is 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 TPO 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™ Tack Back™ Primer or Low VOC Tape Primer. Allow primer to dry before installing tapes. TPO 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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Lap Caulk

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White Lap Caulk
Available in 10.5 oz. tubes

Product Information:

Our TPO 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:

TPO 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 white 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.

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Low VOC Neoprene Bonding Adhesive

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Available in 1 gallon cans or 5 gallon pails

Product Information:

Seal Trust™ TPO Low VOC Neoprene Bonding Adhesive is designed for use with TPO membranes to adhere to insulation boards such as ISO and wood fiber and also to wood, metal, masonry and approved roofing substrates. It may also be used as a general contact bond adhesive for both vertical and horizontal surfaces. It is especially formulated for use in OTC states with Low VOC requirements. May dry faster than regular bonding adhesives due to the solvent content. May be applied using brush, roller or squeegee and also may be sprayed applied using proper equipment.

Application Instructions:

Recommended application instructions for use in TPO projects are printed on the container label. Care must be taken to ensure adequate adhesive coverage when using some substrates with irregular surface patterns. Stir well before use. May be warmed to room temperature before use to promote easier application. Apply a thin coat to both intended surfaces and let adhesive “dry” until it is tacky to the touch. Mate both surfaces and apply mild pressure. Once the intended surfaces are mated, it will not be possible to reposition them without breaking the bond. Membrane should be rolled when completed. CAUTION. Keep bonding adhesive out of the seam areas at all times!

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Low VOC Splice Wash

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Available in 1 gallon cans

Product Information:

Splice Wash is a clear solvent used to clean dirt and containments from single ply roof systems. Especially used on old membranes to remove dirt prior to application of tape primers or seam adhesives. Change rags or applicator pads frequently! Do not allow product to puddle on EPDM or TPO for long periods of time. Discarded rags should be disposed of properly and will be a flammable hazard. No smoking or open flames on the roof while using this product. This Low VOC formula is for use in OTC states.

Application Instructions:

This product should be scrubbed into the EPDM or TPO surfaces thoroughly to remove surface debris. Change rags frequently. Always clean an area in excess of the area to be covered. When used with clean membranes such as EPDM or TPO this wash is not required. Use solvent resistant gloves when using this product.