K&w Permanent Metallic Block Seal Head Gasket Repair 401016

K&W 401016 Permanent Metallic Block Seal, 16 oz

• Permanent molecular seal that’s as strong as steel
• For use in all water-cooled diesel and gasoline vehicles
• Withstands extreme pressure and temperatures of a cooling system and will not wash away
• Professional grade formula exceeds ASTM D6107 for effectively sealing leaks in cooling systems

Radiator by CRC. Details:Forms a permanent molecular bond that’s as strong as steel. Seals cracks & holes in cast iron & aluminum engine blocks, head gaskets, freeze plugs, & copper, aluminum & bi-material radiators & heater cores. Tested by an Independent test lab. Rated No.