JLM Radiator Stop Leak seals holes up to 0.9 millimetres in radiators, coolant hoses, coolant reservoirs, heating radiators, cylinder heads, head gaskets and water pumps and cleans and prevents oxidation.
Includes an anti-corrosive agent, making it an ideal preventative or maintenance additive. JLM Radiator Stop Leak can be mixed with all types of after-market coolants and antifreezes. Suitable for all common cooling systems, water pumps and heating systems in all vehicles.