K-Seal Coolant Stop Leak Repair

K-Seal Coolant Leak Repair is a fast, effective, and permanent solution for sealing leaks in the cooling system. Trusted by professionals worldwide, K-Seal repairs head gasket leaks, radiator cracks, and water pump housing damage — all without draining or flushing the system.

Its advanced micro-fibre ceramic formula mixes with all types of antifreeze and coolant, sealing leaks permanently while maintaining full cooling efficiency. Safe for use with all water-cooled engines, including cars, vans, and light commercial vehicles.

Key Features:

• Permanently seals leaks in the head gasket, radiator, heater core, and water pump housing.
• No need to drain or flush – simply shake, pour, and go.
• Compatible with all coolant types, including water-based and OAT.
• Repairs leaks while the engine runs, with no dismantling required.
• Safe and easy to use – trusted by mechanics and drivers worldwide.
• Prevents overheating and restores system efficiency.

How to Use:

1. Shake the bottle well.
2. Pour directly into the radiator or expansion tank.
3. Run the engine to circulate for a permanent, reliable seal.