Use Bead-It Black to seal oil pans, thermostat housing, water pumps, valve covers, oil pumps, timing gears, transmisson pans and axle covers. The unique finger trigger dispense allows you to draw any shape or size gasket with ease and keeps the product in the container fresher longer. Bead-It skins over in about 15 minutes and is completely cured in 24 hours. Not recommended to be used in direct contact with gasoline, fuel oil, caustic or acid solutions.