Bar's Leaks Head Gasket Fix - 24 oz.

Bar's Leaks® Block Seal Head Gasket Fix product is the easiest solution to stop head gasket coolant leaks. No draining of the cooling system is required. This formulation contains a combination of antifreeze compatible sodium silicate sealing liquid and various size gasket sealing particles which penetrate gaps & cracks and harden to permanently stop leaks. This seals because of the extreme heat inside the combustion chamber 5000°F that works as a catalyst to permanently harden the material to make it st...