Bar's Leaks Pack of 1 1186 Liquid Aluminum Stop Leak-16.9 oz Bar's Leaks Liquid Aluminum Stop Leak seals radiator leaks. Seals freeze plug leaks. Repairs gasket leaks and heater core leaks. Lowers water temperature. Seals radiator leaks Seals freeze plug leaks Repairs gasket leaks Special Shipping Information: This item cannot be returned and has additional shipping restrictions