Polyprene® for EPDM/PVC
  • Polyprene® for EPDM/PVC

    Reference # 2
    • Description
    • Specifications
    • FAQs
    • Resources

    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

    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

    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.