Polyurethane sealant designed for many construction and repair applications. Ideal for installing and repairing door and window frames and all types of siding applications. Very flexible sealant provides years of elasticity even in intense sunshine and sub freezing conditions. Resists cracking, cuts, and tears. Bonds with most common building materials including wood, vinyl, metal, and aluminum. Paintable and stainable. Carries a 50 year life expectancy. 10 oz. cartridge.