Get back on the road

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

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The K-Seal product range

K-Seal

K-Seal®

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

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K-Seal Ultimate

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

K-Seal® HD

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

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Save money with K-Seal

No need to drain the system or worry about what type of antifreeze is in the cooling system; just shake, pour and get back on the road!

K-Seal is a one-step permanent multi-purpose system for coolant leak repair with over 6 million bottles being sold worldwide to date. It permanently repairs leaks in the head, head gasket, block, radiator, heater matrix, freeze plug and water pump casing.

Trusted by professional mechanics and technicians, K-Seal is suitable for use with all water cooled engines including cars, motorbikes, commercial vehicles and heavy machinery.

Just wanted to say how impressed I am with K-Seal. I have a Rover 414 with HGF, in fact water was shooting out the front of the block when it was running and the water was pressurising from the failure. After pouring K-Seal into the header tank ALL symptoms went away and the car loses NO WATER AT ALL! I’m quite frankly astonished at how well it works. Thanks for the fine product. Cheers.

Andy Hill, UK View more case studies

Expert Advice

Head Gasket Failure? Cracked Head or Block?
Leaking Radiator?

Expert Advice

Where to buy K-Seal

Have any of these symptoms? K-Seal could save you thousands on a workshop repair. Search for a stockist today!

Where to Buy