AlphaGuard WB Primer

Single Component, Water-Based, Polymer Modified Primer

AlphaGuard WB Primer is a single component water based, polymer modified primer used to penetrate and prime a variety of roofing substrates prior to the application of AlphaGuard BIO waterproofing system.


Used as the primer coating before the application of Tremco’s AlphaGuard BIO waterproofing system, when applied over the following existing substrates:
  • Bituminous Surfaces
  • EPDM (Test Patch Required)
  • PVC
  • PVA
  • TPO
  • Hypalon
  • Existing Urethane Systems


  • Environmentally friendly.
  • Water clean-up.
  • Non-toxic.
  • Diverse primer, used to promote adhesion of AlphaGuard BIO to a variety of existing substrates.
  • No frequently asked questions for this product