Head Gasket Sealant from Blue Devil

Blue Devil says its Head Gasket Sealant permanently seals cooling system leaks such as blown head gaskets, warped and cracked heads, heater cores and freeze plugs.

Blue Devil is non-clogging and contains no solid or particulate matter which can be harmful to the engine. It can be used on gasoline or diesel engines and bonds to metal, aluminum, cast, alloy, or plastic, notes the company.

The application process only takes 1-2 hours and the vehicle can be driven immediately. Blue Devil guarantees a permanent seal, and the sealant is non-clogging to the cooling system. The product also works on Northstar engines.

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