Aggressive adhesive which sticks to almost all surfaces. EPDM, TPO, Metal, Fiberglass, Aged & Rigid PVC, Vinyl, Wood OSB, and most building materials. Clear adhesive eliminates grey ring around edge of new patch. Less gooey adhesive eliminates slippage during application. Wide temperature range at time of installation. From 25F without primer to -25F with Quick Roof SeamPrime. Increases in adhesion over time