Permatex Ultra Copper Maximum Temperature RTV Silicone Gasket Maker. The most advanced, high temp RTV silicone gasket available.OEM specified. Highest operating temperatures for 4-cylinder, turbocharged or high-performance engines. Sensor-safe, low odor, noncorrosive. Superior adhesion. Three times more oil resistant than conventional silicones; eight times more flexible than cut gaskets. Temperature range -75F to 700F (-59C to 371C) intermittent; resists auto and shop fluids and vibration. Suggested Applications: Exhaust manifolds/ headers, valve covers, oil pans, timing covers, water pumps, thermostat housings
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