3M™ black super silicone seal is formulated for fast and effective repairs. It cures to a tough, rubbery solid when exposed to moisture in the air. Our paste like, one-component silicone rubber adheres to clean metal, glass, wood, ceramic, natural and synthetic fiber, painted surfaces and some plastics. 3M™ black super silicone seal exhibits excellent resistance to vibration, moisture, ozone and extreme temperatures. Our sealer is a paste like, one-component material that cures to a tough, rubbery solid when exposed to moisture in the air. This silicone seal comes in a tube for easy dispensing and application convenience. Our silicone seal delivers toughness and durability when exposed to common environmental effects. It exhibits high temperature-resistance, good weathering-resistance and good water-resistance. This sealer will dry tack-free in 15 to 20 min and has a cure-thru time (1/8 in thickness) in 24 hr.