Gasket sealer, use to replace any gaskets including felt and other cut gaskets, forms a leak proof seal. Resists oil, grease, water, antifreeze, and transmission fluid. More flexible than conventional gaskets, can be used on to replace engine, water pump, transmission or any place a high performance gasket is needed. It is also a hi-temp sealant and can be used on manifolds, mufflers and exhause pipes. 3 ounce tube.