Will not foul oxygen sensors. Replaces almost any cut gasket, makes reliable formed-in-place gaskets that withstand high temperatures and high pressures. Resists cracking, shrinking and migrating. Coats pre-cut gaskets to increase reliability. First generation 1970-1980 gasket maker. Withstands temperatures -65 to 500 degrees Fahrenheit intermittent. Resists auto and shop fluids. Use for valve covers, oil pans, timing covers, water pumps, thermostat housings and transmissionpans.