K-Seal
Permanent Coolant Leak Repair
About Us
K-Seal is the global specialist in coolant leak repair solutions. Since 2003 K-Seal has sold millions of bottles worldwide and is the choice of professional technicians and leading roadside recovery organizations. Made in the USA, we are constantly improving our technology, so you get the best result, every time. Suitable for all water-cooled engines from bikes to cars, trucks and Heavy-Duty vehicles…. Don’t Just Seal It, K-Seal It!
What makes K-Seal so special?
K-Seal is specifically engineered to fix leaks in the cooling system that would otherwise cost you thousands to repair in the workshop.
What makes our products unique?
K-Seal uses a proprietary ceramic formula that mixes with all types of antifreeze / coolant. K-Seal is multipurpose and will fix leaks in the radiator, head, head gasket, block and all hard parts of the cooling system.
How long does it take for K-Seal to work?
Once added to the system K-Seal will usually stop the coolant leak within minutes. The repair is permanent for the life of the engine.
K-Seal ST5501
Experience the ultimate solution to coolant leaks with the K-Seal ST5501, a multi-purpose, one-step permanent coolant leak repair.
K-Seal ST3501
Introducing the K-Seal ST3501 Pour and Go Permanent Head Gasket and Block Repair, a revolutionary solution for head gasket leaks.
K-Seal ST5516
K-Seal ST5516 HD permanent coolant leak repair designed specifically for HGVs, tractors, heavy plant and other commercial vehicles.
 K-Seal |  K-Seal Ultimate |  K-Seal HD | |
|---|---|---|---|
| Customer Reviews | — | — | — |
| Price | — | — | — |
| Fixes Most Leaks in Water-Cooled Engines | ? | ? | ? |
| Permanent Repair | ? | ? | ? |
| Small Engines - Cars, Motorcycles and Trucks | ? | ? | no data |
| Large Engines - HGV's, Tractors, Heavy Plant and Commercial Vehicles | no data | no data | ? |
| Repairs Head, Head Gasket, Block, Radiator, Heat Matrix and Water Pump | ? | ? | no data |
| Multi-Purpose Cooling System Repair | ? | no data | ? |
| Head Gasket and Block Repair | no data | ? | no data |
| Independently University Tested to ASTM D3147 | ? | ? | ? |
| Compatible with All Types of Antifreeze including Waterless Coolants | ? | ? | ? |
K-Seal | K-Seal Ultimate | K-Seal HD | |
|---|---|---|---|
| Customer Reviews | — | — | — |
| Price | — | — | — |
| Fixes Most Leaks in Water-Cooled Engines | ? | ? | ? |
| Permanent Repair | ? | ? | ? |
| Small Engines - Cars, Motorcycles and Trucks | ? | ? | no data |
| Large Engines - HGV's, Tractors, Heavy Plant and Commercial Vehicles | no data | no data | ? |
| Repairs Head, Head Gasket, Block, Radiator, Heat Matrix and Water Pump | ? | ? | no data |
| Multi-Purpose Cooling System Repair | ? | no data | ? |
| Head Gasket and Block Repair | no data | ? | no data |
| Independently University Tested to ASTM D3147 | ? | ? | ? |
| Compatible with All Types of Antifreeze including Waterless Coolants | ? | ? | ? |
K-Seal
Permanent Coolant Leak Repair
About Us
K-Seal is the global specialist in coolant leak repair solutions. Since 2003 K-Seal has sold millions of bottles worldwide and is the choice of professional technicians and leading roadside recovery organizations. Made in the USA, we are constantly improving our technology, so you get the best result, every time. Suitable for all water-cooled engines from bikes to cars, trucks and Heavy-Duty vehicles…. Don’t Just Seal It, K-Seal It!
What makes K-Seal so special?
K-Seal is specifically engineered to fix leaks in the cooling system that would otherwise cost you thousands to repair in the workshop.
What makes our products unique?
K-Seal uses a proprietary ceramic formula that mixes with all types of antifreeze / coolant. K-Seal is multipurpose and will fix leaks in the radiator, head, head gasket, block and all hard parts of the cooling system.
How long does it take for K-Seal to work?
Once added to the system K-Seal will usually stop the coolant leak within minutes. The repair is permanent for the life of the engine.
K-Seal ST5501
Experience the ultimate solution to coolant leaks with the K-Seal ST5501, a multi-purpose, one-step permanent coolant leak repair.
K-Seal ST3501
Introducing the K-Seal ST3501 Pour and Go Permanent Head Gasket and Block Repair, a revolutionary solution for head gasket leaks.
K-Seal ST5516
K-Seal ST5516 HD permanent coolant leak repair designed specifically for HGVs, tractors, heavy plant and other commercial vehicles.