Resistant To Oil & Acid Easy to use This product is manufactured in China Most advanced, high temp RTV silicone gasket available Three times more oil resistant than conventional silicones; eight times more flexible than cut gaskets Sensor-safe, low odor, and non-corrosive with superior adhesion Temperature range -75F to 700F intermittent Suggested Applications: Exhaust manifolds/headers, valve covers, oil pans, timing covers, water pumps, thermostat housings Permatex Ultra Copper Maximum Temperature RTV Silicone Gasket Maker is the most advanced, high temp RTV silicone gasket available. Three times more oil resistant than conventional silicones and eight times more flexible than cut gaskets, it is sensor-safe, low odor, and non-corrosive with superior adhesion. Highest operating temperatures for 4-cylinder, turbocharged or high-performance engines and OEM specified, with a temperature range of -75 degrees fahrenheit to 700 degrees fahrenheit intermittent. Also resists auto and shop fluids and vibration. These gasket makers offer significant performance advantages, excellent torque retention and hi-temp, sensor-safe properties. Extended warranties, engine sensors and new component materials such as aluminum, bi-metal alloys and high-tech plastics, have created the need for superior RTV silicone gasket makers in both OEM production and service applications. Permatex always has the right gasket maker for your application.
Been using this stuff for over 15 years on everything from cars/trucks, to motorcycles, lawn equipment, & even the coal stove. Works great as an adhesive too, as it dries to a strong rubber-like texture. Needs a bit of time to cure, but once it does it forms a pretty strong bond. I once used it in place of the differential cover gasket in a '86 Grand Marquis - lasted over 6 years before it started weeping gear oil. The color is ugly, but the stuff works.