J-B Weld 32325

J-B Weld Ultimate Copper High Temperature RTV Silicone Gasket Maker and Sealant J-B Weld Ultimate Copper Silicone Gasket Maker and Sealant is an RTV (Room Temperature Vulcanized) Silicone gasketing material that is 3 times more oil resistant than conventional silicones and designed to resist the high operating temperatures of turbocharged or high-performance engines. Ultimate Copper is effective in temperatures from -75F to 700F intermittent. Upon curing which occurs when the product is exposed to the moisture in air the silicone forms a tough waterproof seal on most surfaces. It will not shrink or crack resists weathering is sensor safe and is great for many automotive applications. Great for: Oil Pans Valve Covers Exhaust Manifolds Water Pumps Timing Covers Differential Covers Drive Housings Oven Doors Use on: Automotive Metal And more Instructions<