About GAF Metal Roof Primer

GAF Metal Roof Primer is a water-based, medium viscosity, premium-quality acrylic primer. It is effective in enhancing adhesion over metal substrates providing protection against rust and corrosion (formerly known as Acrylex 400 Primer).

Features & benefits

Product Documentation

Resources for every professional

Contractors

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

Architects & Design Pros

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

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