NAPA Cooling System Stop Leak

Sealant for cooling systems of both diesel and petrol engines. Effectively protects the cooling system and combustion chamber against sealing damages. Compatible with all types of coolants and antifreeze. Apply in case of: - Leaking cylinder head gaskets - Leaking cooling hose connections - Hairline cracks in the radiator, cylinder head or engine block

• Add to coolant
• Direct effect after application
• Long-lasting result
• Easy to use
• Suitable for all cooling systems of petrol and diesel engines. Also for closed cooling systems.
• Fully compatible with all types of antifreeze and coolants.
• It has no harmful effect on rubber, plastics, alloys and non-ferrous metals.