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).