Rust-Oleum 105 Single-Ply Adhesion Primer is a water-based primer designed to enhance coating adhesion on challenging roofing materials. Its high-tack formula ensures strong bonding on single-ply membranes like EPDM, PVC, PIB, TPO, and Hypalon, which are typically difficult to coat directly.

This primer also performs well on asphalt emulsions, masonry, and various construction surfaces, providing a reliable base for top-coat applications and extending the durability of your roofing system. Ideal for professional use where superior adhesion is critical.

• Water based
• High tack finish
• Suitable for single ply membranes, asphalt emulsions and masonry surfaces
• compatible with elastomeric (acrylic) roof coatings and Asphalt emulsions 

For Best Results

Surface must be sound, clean, dry, and free of dust, oil, mold, algae, heavy rust, excess chalk, and other foreign matter which could prevent proper adhesion.