Versachem Black RTV Silicone forms a tough, flexible silicone rubber gasket that resists aging and weathering, providing a leak proof seal. This high strength, moisture curing gasketing material maintains long-term durability and flexibility, ideal for bonding, sealing, insulating, repairing, filling voids and more. OEM (Original Equipment Manufacturer) approved, this formula is non-flammable, waterproof, low volatile, and oxygen sensor safe. Use it to repair ripped vinyl, boat hulls and deck joints, weather-stripping, sealing windows, door frames and more. Works best on metal, glass, natural and synthetic fiber, vinyl, rubber, plastic, concrete, ceramic, painted surfaces, and silicone rubber. Features a temperature range of -100F to 450F (continuous) -100F to 600F (intermittent), and a tensile strength of 300 PSI (up to 500 PSI intermittent).