BlueDevil Radiator & Block Sealer


This car radiator sealant offers a permanent solution for the leaks in your vehicle and has been specially designed to fix radiator and block leaks. The BlueDevil Radiator & Block Sealer is made in the USA and claims that permanent repair is guaranteed. The product works amazingly well on plastic, aluminum and metal radiators and is super safe and easy to use.

Made from a special formula with no solid or fibrous materials this product won’t harm or clog your cooling system. Instead, it bonds to plastic, cast iron, aluminum, alloy or metal and is compatible with gasoline and diesel engines. When this formula bonds to the weak points in your cooling system it then creates a permanent airtight seal that will work with the heat of your engine to expand and contract. You can add this directly to your cooling system…you just literally pour and go!