OSI 10.5 oz. Black Roof and Flashing Sealant

OSI Black Roof and Flashing Sealant is formulated for bonding shingles, flashings, gutters, seams, and executing general roof repairs. Engineered for durability, this high-performance sealant provides easy application with low-temperature extrudability, maintaining strong adhesion through years of continual weather extremes. This sealant sets within 24 hours and remains flexible to resist cracking over time. Suitable for wet surface and cold weather application, it delivers dependable UV and water resistance to safeguard roofing surfaces against moisture intrusion.