A single-component, brushable fibered sealant for strong, flexible roof repairs. The one-step application immediately & permanently stops leaks, even in wet and icy conditions. No primers needed. Mildew proof and paintable. Adheres to asphaltic and metalsurfaces, sprayed polyurethane foam (SPF), as well as EPDM, Hypalon, Neoprene, TPO, PVC and other prefabricated sheets.