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High temperature silicone
Loctite SI 5920 Ultra Copper high temperature silicone RTV gasket is sensor-safe, low odor and non corrosive. It is the most advanced high temperature silicone gasket available and gives superior adhesion, is outstanding oil resistant and has excellent torque retention. Temperature range from -75°F to 700°F (-60° to 370° Celsius), resists all types of automotive and shop fluids and vibration. Recommended for use on exhaust manifolds and connectors, valve covers, etc. Comes in a 80 ml. tube. Sold each.