Cooling system sealants Gunk C501

A powder sealant for cooling systems. 28.3 g. It quickly stops leaks, does not plug the cooling system and is absolutely compatible with all types of coolants. It is designed for use in cooling systems (up to 9 l) of cars, tractors and light-duty trucks. System drain and flush are not mandatory if it is not very dirty. Application: Warm up the engine to the operating temperature and stop it. Slowly add the sealant into the radiator and start the engine for 5 - 10 minutes when the leaks will be eliminated.