Will immediately seal small leaks caused by external damage, porous solder joints, and hairline cracks in cooling systems of all water-cooled engines. Coolant is prevented from entering the combustion chamber due to internal leaks from the head gasket etc. It does not react with oxygen or heat and will never prevent system flow or cause overheating. Radiator Stop Leak works as long as it’s in the coolant.
- Compatible with most types of coolant or anti-freeze
- Safe to use with aluminum radiators
- Permanently seals smaller leaks.
- Will not affect the water pump or heater unit.
- Use as preventive