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Reference # 2
Polyprene® for EPDM/PVC
Description
Polyprene® is a rubber, universal roof repair cement used for flashings, seams, pitch pans, cracks, splits and making various repairs on EPDM/PVC roofs. We offer a special Polyprene® with extra agents that provide maximized adhesion specifically for EPDM and PVC roof repairs. Polyprene® for EPDM/PVC offers a water-tight and long-lasting seal. The heavily-fibered, high-solids content prevents mud cracking, making it ideal for pitch pans as well as to seal seams, cracks, around vibrating rooftop equipment, skylights, vents, flashings, and more. Polyprene® for EPDM/PVC is available only in heavy brush grade.
- Quickly and easily reinforces critical areas
- All rubber, fiber reinforced — stays flexible and won't crack when cold
- May be used with or without PolyCore™ reinforcement, as needed
- Can be applied thick, in one layer, without threat of mud cracking
Specifications
Elongation
850% min
Water vapor permeability
.25 perms
Viscosity
400 pen
Weight per gallon
8.8 – 9.3 lb.
Solids total
70%
Flashpoint of solvent
104° F
Dry to touch @ 77° F (50% rel. humidity)
~ 12 hrs
Ultimate Elongation
850%
Ultimate tensile strength
600 psi min.
Peel Adhesion
4.3 pli min.
Water vapor permeability
0.25 perms
Service Temperature:
-40° - 140° F
Moisture Resistance:
Immediate
FAQs
Q: How do I fix blisters in my roof surface?
A: Fix blisters by making an “X” cut, laying flaps open to clean/dry out, then fill and tamp closed and add more Polyprene® to cover all edges.
Q: What do I do if I have seams with a larger than 1/16” width?
A: When working with Polyprene®, gaps being sealed should be no more than 1/16” in width. However, we have a strong solution for larger gap sealing. PolyCore™ membrane nap can be applied to cover original gaps of more than 1/16” before applying Polyprene®. This reinforces the gap and allows for a clean, water-tight seal.
Resources
Polyprene® for EPDM/PVC
