About GAF PMMA Catalyst Powder

GAF PMMA Catalyst Powder is to be mixed with GAF PMMA Resin – Summer or Winter Grade. GAF PMMA Flashing Resin – Summer & Winter Grade are designed to reinforce areas of BUR and SBS substrates that are heavily alligatored or contain numerous cracks, seams, joints, or splits.

  • GAF PMMA Catalyst Powder is to be mixed with GAF PMMA Resin – Summer or Winter Grade. GAF PMMA Flashing Resin
  • 10 (0.1 kg) bags per box (1.0 kg total)
  • Premeasured packets for easier mixing

Product Documentation

Resources for every professional

Contractor working on a commercial roof

Contractors

We’re building new plants for greater capacity, and better systems for faster response and greater visibility.
Contractor Resources
An architect drafting blueprints

Architects & Design Pros

We’re building better, faster, more accurate access to the information you need.
Design Resources
A commercial storage facility

Property managers & owners

Whether you manage one property or many, we’re building the products and programs you need to reroof, restore, or maintain your investment.
Building Resources
GAF employee outside flatbed truck with shingles

Roofing suppliers

Find tools, documents, and training designed by GAF to help you serve your customers.
Dealer Resources