Flex Paste Black Rubber Sealant, 1 lb. is a super thick, rubberized paste designed to coat, seal, and protect a wide range of surfaces. This versatile sealant can be applied to most materials, including wood, glass, tile, concrete, aluminum, metal, brick, stucco, masonry, copper, fabric, fiberglass, ceramic, porcelain, natural stones, roofing materials, PVC, EIFS, EPDM, CSPE, Hypalon polyurethanes, and more. It adheres well even underwater and dries to a flexible rubber that expands and contracts without shrinking. Flex Paste is paintable, non-flammable, and resistant to chemicals and mildew, making it i for both indoor and outdoor use. It creates a watertight seal that blocks air, moisture, and water, while also ing UV resistance. Easy to use, this sealant is for crafts, hobbies, gardening, and various projects. Each pound covers approximately 10 linear feet at 2 inches wide and 1/16 inch thick, with a cure time of 24 to 48 hours. Model Number: