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NGN RADIATOR STOP LEAK is sealing the cooling system additive. Eliminates the leak and seal the hole up to 3 mm. It is allowed to use for preventive treatment of the cooling system.


• Stops leaks in the radiator, engine block, cylinder head, connections, etc.
• It can be mixed with all types of antifreeze and coolants (type C, D and universal).
• It is effective for metals and plastics.
• Cannot seal rubber parts.

How to use

Check and add coolant if necessary. Start the engine and warm up to operating temperature, turn on the cabin heating system. Shake the bottle and pour the additive into the cooling system. Run the engine for 10 minutes, and then stop the engine. One bottle treats up to 10 liters of coolant.

Available volumes

№ V0031