Titebond Weathermaster 10 oz. Dark Green Metal Roof Sealant is a specially formulated, premium-grade polymer designed to provide adhesion to all metals, including Kynar™ coated metals, aluminum, galvanized steel, copper, and most other common building materials. This sealant is for outdoor applications such as sealing metal roofs, windows, doors, siding, gutters, and vents. It performs well even in extreme weather conditions, remaining permanently flexible without cracking. The UV-resistant and VOC-compliant formula will not shrink and adheres effectively to wet or damp surfaces. For results, ensure the surface is clean and of any materials that might prevent proper adhesion. The sealant is easy to apply with a caulking gun and cleans up with acetone or isopropyl alcohol before curing. Once cured, excess sealant can be trimmed or scraped away for a neat finish. Model Number: 61781A