K-Seal Coolant Leak & Head Gasket Repair

Permanent coolant leak repair and head gasket fix with K-Seal. Order Now

The K-Seal product range

Our most popular products.

K-Seal®

Permanently seals leaks in the head, head gasket, block, radiator, heater matrix and water pump.

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K-Seal® ULTIMATE

A unique formula specially developed to permanently repair serious head gasket and porous block problems.

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K-Seal® HD

Designed for large engines including HGV’s, tractors, heavy plant and other commercial vehicles.

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The Scientifically Tested Coolant Leak Repair!

We are extremely proud to say that, to date, K-Seal is the only product to meet the demands of ASTM D3147 after being successfully tested by the equipment at Brighton University.

“The test data shows that K-Seal is capable of sealing 0.635mm diameter holes and 0.254mm wide by 12.7mm long slots satisfactorily in accordance with ASTM D3147.”

Brighton University Engineering Division