It's not easy to find small leaks caused by stone chipping, porous soldered connections or hairline cracks in the cooling system. Usually the only clue is in the reduced coolant. This dispersion completely seals this type of leaks immediately and safeguards the combustion chamber against damage caused by coolant ingress. For radiator coolant and heating systems with and without water filters. Also suitable for aluminum and plastic radiators. 250 ml sufficient for up to 40 l of coolant. Compatible with all conventional coolant additives and antifreezes. Can also be used preventively.