Wynn's Cylinder Block Seal 72250

Wynn's CYLINDER BLOCK SEAL 72250 

• Repairs cracks in the cylinder block without the need for disassembly.
• Exposed to air it forms a hard fiberglass coating.
• Repairs and seals cracks in cast iron, steel and aluminum cylinder blocks without the need for disassembly.
• Stops leaks from the head flange.
• Provides permanent repair and sealing within 30 minutes.
• Resistant to high pressures, water pressure and vibration.
• Does not block hoses, does not repair seals (such as head flanges).