AlphaGuard Si Primer:

AlphaGuard™ Si Primer

Two component, water-based epoxy primer

AlphaGuard Si Primer is used to prime smooth built-up roofing (BUR), modified bitumen and single ply substrates as well as masonry and metal tie-ins before installing AlphaGuard Si 70 and AlphaGuard Si 100 liquid applied roofing solutions.


AlphaGuard Si Primer is a two component, water-based epoxy primer.

Roofing & Weatherproofing Peace of Mind

We deliver peace of mind to building owners and facility managers by managing roofing and building life cycles for customers in all industries, including education, healthcare, government, manufacturing and more.

  • Tremco Roofing offers the industry's most comprehensive roofing and weatherproofing solutions for restoration, repair, maintenance, replacement and new construction.
  • WTI (Weatherproofing Technologies, Inc.) provides roofing services, construction management and general contracting.
  • Our Canam Building Envelope Specialists affiliate provides building envelope solutions to eliminate air leaks, improve energy efficiency and reduce costs.


Phone: 1.800.852.6013