K&W Copper Coat spray is the easiest, most effective sealant for use with copper head gaskets, shim steel head gaskets or shim copper head gaskets. A light coat of G1612 on both sides of the head gasket will ensure coolant stays where it belongs. One 9 ounce can provides enough sealant for at least 3 V8 engines. Package contents; 1ea 9 oz. aerosol can.