Avoid Expensive Downtime! Keep K-Seal™ HD on Hand! K-Seal Keeps Trucks Moving. K-Seal Heavy Duty One Step Permanent Coolant Leak Repair can help keep commercial vehicles on the road instead of stuck in the workshop losing money. K-Seal is suitable for use with all water cooled engines including: * Trucks * Buses * Agricultural Equipment * Construction Vehicles One 16oz bottle of K-Seal will perform cooling system repair on systems with a capacity up to 50 quarts. (Use the 8oz K-Seal for cooling systems less than 20 quarts). K-Seal HD will permanently seal leaks in the head gasket, block, cylinder head, radiator, heater core, freeze plugs and water pump casing. Simple to use, just SHAKE, POUR & GO!

Other Details:

1. Shake bottle vigorously (at least 30 seconds) to ensure that the contents are evenly mixed. 2. Add the entire contents to the radiator or overflow tank. (When adding K-Seal™ to the overflow tank, you may pre-mix the contents with 1 to 2 quarts of water to ensure effective dispersal into the cooling system. Allow time for the product to enter the cooling system if you are treating a slow leak. Do not pour K-Seal™ directly onto metal). 3. The radiator leak will be plugged up within a few minutes once the engine reaches it’s the appropriate temperature. 4. Top up the coolant as necessary leaving the K-Seal™ in the system for future sealing. K-Seal™ is compatible with all types of antifreeze.


If you have any questions you can contact us at 1  903  757  4572  between 8am and 5pm Central Time  or come by at 5765 E. Loop 281 S. Longview, Texas 75602