Small leaks or porous solder joints and hairline cracks in the coolant system are not easy to locate (all that is noticed is the sinking coolant level). Radiator Stop-Leak seals these type of leaks immediately and completely. Preserves the combustion chamber from damage due to escaping coolant. Compatible with all commonly used cooling water modifiers and antifreezes.

For all coolant water and heating system with and without water filters. Also suitable for aluminium and plastic radiators. 150 ml is sufficient for 10 litres of coolant water.