K-Seal
K-Seal 236ml Coolant Leak Repair Sealant
amazon.co.uk price: £12.94 (as of 03/10/2026 13:30 UTC) Details
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Sealant for repairing leaks in water-cooled engine cooling systems
A 236ml coolant-system sealant designed to help seal leaks in water-cooled car and light-truck engines.
K-Seal is a multi-use coolant leak repair sealant supplied in a 236ml bottle. It is designed for leaks involving parts of the cooling system and engine, including radiators, head gaskets, freeze plugs, blocks, heater matrices and water pumps.
How it is used
The listed application is straightforward: shake the bottle, add the sealant to the coolant system and run the engine as normal. The product information states that no draining or flushing is required before use.
Compatibility information
- Suitable for cars and light trucks with up to 12 cylinders.
- Compatible with all types of antifreeze coolant, according to the listing.
- Intended for use in water-cooled engines where a coolant leak needs attention.
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