K-SealK-Seal Permanent Coolant Leak Repair

You might not need an expensive vehicle repair!

The solution could be in the little blue bottle.

With over 2 million bottles sold worldwide, K-Seal permanent coolant repair is the preferred brand of motor stockists and their customers. Why?


  • Fixes most leaks in all types of water cooled engine including cracked heads, head gasket failures, cracked blocks, radiators, heater cores and water pumps.
  • A repair made with K-Seal is permanent, guaranteed for the lifetime of the engine.
  • Unlike inferior coolant products, K-Seal mixes with all types of antifreeze and coolant.  There’s no need to drain or flush the system before or after treatment.
  • K-Seal is easy to use.  Shake the bottle; add it to the cooling system and go.

K-Seal is a preferred product with mechanics too. Here’s some unedited feedback about K-Seal:

” I just put some K-seal in my daughter’s 1999 Olds Alero and it appears the leak at the intake manifold gaskets has stopped. You just saved me $600 in repairs.”

“Trade feedback is that K-Seal is a brilliant product.”

“When customers use K-Seal they do come back and tell you that it works and it’s brilliant.  We haven’t had that kind of feedback for any other product.”

“1998 Ford F150 with 250,000 miles, decent leak in head gasket, within 15 minutes the leak was completely plugged.  No other product I’ve used in this truck has been able to do this.”

Read more of our testimonials.

A repair made with K-Seal is guaranteed to last.  In the unlikely even that you need to make a claim please download our guarantee form.

Find your nearest stockist now Got a question about K-Seal? Read our FAQs or Contact us.