OSI Clear Polymer Sealant 9 oz. (Pack of 12)Discover mother natures worst nightmare: OSI QUAD MAX. Acting as the first line of defense against the elements, OSI QUAD MAX Window, Door & Siding Sealant delivers the toughness needed to make a job last. Designed for sealing around exterior interior windows, doors and siding, QUAD MAX is a paintable caulk that bonds to a wide variety of materials such as fiber cement, cedar, brick, stone, coated aluminum, fiberglass, vinyl, PVC, stucco, EIFS, wood,