Flex Paste Black Rubber Sealant, 3 lb. is a versatile and super thick rubberized paste designed to coat, seal, and protect a wide variety of surfaces. This flexible sealant clings firmly and instantly fills gaps, expanding and contracting without shrinking. It can be applied to most surfaces, including underwater, and dries to a durable, flexible rubber finish. Flex Paste is paintable, non-flammable, and resistant to chemicals and mildew, making it i for both indoor and outdoor use. It adheres well to wood, glass, tile, concrete, metal, brick, stucco, masonry, copper, fabric, fiberglass, ceramic, porcelain, natural stones, roofing materials, PVC, and more. Easy to use, it is for crafts, hobbies, gardening, and various projects. It creates a watertight seal that blocks air, moisture, and water while ing UV resistance. Coverage is approximately 10 linear feet at 2 inches wide and 1/16 inch thick per pound, with a cure time of 24 to 48 hours. Model Number: