XERAMIC INSTANT GASKET BLACK is ideal for replacement gasket for valve covers trans mission and oil pans water pumps thermostat housings exhaust manifolds and many more. Resists transmission fl uids water oil and anti-freeze. Replaces cork paper felt and rubber gaskets. Not recommended for use on head gaskets or continuous immersion in gasoline. Withstands high temperatures up to 250 C intermittent . Temperature range -73 C up to 250 C. Low volatile oxygen sensor safe.