Bar's Leaks Block Seal Head Gasket Sealant (Pack of 4),1100-4PK

For most vehicles, this is the last chance before going to a junk yard or paying an expensive repair bill. This product contains a blend of aramid and refractory fibers giving the strength of a bullet proof vest and the heat resistance of fire-proof clothing. As these particles penetrate a crack or the blown head gasket area, they lock together and bond forming a hard permanent ceramic type seal. Your vehicle is a good candidate for this product if it can idle for 20 minutes without overheating or having to add coolant. Works effectively on cast iron or aluminum blocks & heads. Detailed instructions on back booklet label take you through each step of using the product.

• REPAIRS BLOWN HEAD GASKETS: This product contains a blend of aramid and refractory fibers giving the strength of a bullet proof vest and the heat resistance of fire-proof clothing. As these particles penetrate a crack or the blown head gasket area, they lock together and bond forming a hard permanent ceramic type seal.
• REPAIRS CRACKED HEADS & BLOCKS: Your vehicle is a good candidate for this product if it can idle for 20 minutes without overheating or having to add coolant.
• REPAIRS INTAKE GASKET LEAKS: Works on gasoline engines, turbocharged engines, diesel engines, and heavy duty engines.
• STOPS ALL COOLANT LEAKS: Works effectively on cast iron or aluminum blocks & heads.
• Head Gasket Sealant is NOT COMPATIBLE with antifreeze and must only be added to the cooling system after ALL ANTIFREEZE has been flushed and removed.