Cures all leaky radiators, cylinder blocks and water pumps, even when used with antifreeze. Powder formulation comes in handy sachets for cars or tubes for larger vehicles such as trucks and tractors. (Not suitable for certain Rover models).

Liquid rapid sealing version of the above for repairing leaks in engine blocks and radiators as well as lubricating water pumps. (Not suitable for certain Rover models).

Removes scale, rust and sludge from engine cooling systems.

Heavy duty formulation finds and seals cracks in cylinder blocks.