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Radiator Stop Leak

  •  When to use it?

    When to use it?

    Use this product to stop minor radiator and cooling system leaks.

  • Why Buy This Product?

    Why Buy This Product?

    Armor Radiator Stop Leak delivers powerful sealing capabilities to prevent cooling system leaks.

  • Special Features & Benefits

    Special Features & Benefits

    Seals leaking radiators, water pumps, hoses, heat converters, and other cooling system components.

  • How to Use?

    How to Use?

    Add 300 ml to 4 to 8 litres of coolant with the engine running with the heat on. Wait 10 minutes, then check the coolant level and adjust as necessary.


Armor Radiator Stop Leak is scientifically formulated to seal leaks throughout the cooling system, improve system performance, and extend its lifespan. It works to seal leaks in the radiator, at the water pump gasket, in coolant hoses, and in heat converters. It is also compatible with all water-cooled engines and all coolant brands and types.