Goss Chem-i-Weld Coolant Stop Leak 325ml - 13A Car Service Workshop Tool

Key details: Permanently seals small cracks & flaws in cylinder heads, blocks & other castings.; Effective on aluminium, cast iron, steel, brass, bronze and copper castings; Works by hardening on exposure to air in a confined space. Goss Chem-i-Weld Coolant Stop Leak 325ml When used as directed, Chem-i-Weld will permanently repair existing cracks, flaws and porosity in automotive cylinder heads, blocks and other cooling system castings. It works by hardening on exposure to air in a confined space and will continue to harden in the leak area back to the main body of water.