AlphaGuard Si Prep Cleaner:

AlphaGuard™ Si Prep Cleaner

Highly concentrated, biodegradable cleaning solution

Pre-treat EPDM single ply roofs with AlphaGuard Si Prep Cleaner, which is specifically designed for use on these roofing systems before pressure washing and installing the AlphaGuard Si 100 or AlphaGuard Si 70 liquid applied roofing solution.  Allow AlphaGuard Si Prep Cleaner to sit on the surface for at least 15 minutes before washing.


AlphaGuard Si Prep Cleaner is a highly concentrated, biodegradable cleaning solution.

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