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If you use ULTIMATE for a Head Gasket repair and it and it fails to fix the leak get in touch to find out about our money back guarantee. For all our other brands if you have a repair that subsequently fails contact us for a replacement bottle.
Reviews 493
Steve Lucas
Dec 18,2017First class products that deliver on their promises from a First class Company.
Andy Jones
Dec 18,2017K-Seal is the very best coolant repair system money can buy
Dee Blick
Dec 18,2017My son had a pretty old Peugeot car (I am his Mum so forgive my lack of mechanical know how) The mechanic told him that his leaking head gasket would cost £600 plus to repair which would mean his holiday fund was stripped to zero! We bought a bottle of K-Seal and hey presto it actually worked and the leak was fixed right up until he sold it for a much snazzier car. We have since recommended it to friends and family. Great little product!
William
Dec 14,2017Complete faith in what this product claims to do AS LONG as you follow the instructions,..... naturally. I've used this on three separate vehicles. One was an older Jeep Comanche that was pressurizing the coolant system due to head gasket failure. After installing this product the problem stopped and Jeep is still running today....2 years later. My Isuzu Hombre was literally pumping coolant out the exhaust after overheating due to failed hose. Replaced hose and used K-Seal. 4 years and still running fine today with no coolant loss in this whole time. Isuzu Rodeo with coolant loss near thermostat housing,replaced housing but coolant seemed to be coming from just to the side of housing on block. It may have been a crack in block. Installed K-Seal and seepage stopped. 1 year since and still good. Use K-Seal according to it's instructions and I'm sure you'll be satisfied. Oh, I'm sure it has it's limits so if your block has a hole or a hose is leaking you are probably not going to be able to fix them with this product.
Duncan Bone
Dec 14,2017EXCELLENT PRODUCT!!
GivRan Autoparts (Newry) Ltd
Dec 14,2017Excellent Product. Customers ask for this all the time !!
Baxter McKellar
Dec 14,2017It worked on a head gasket I had leaking on the rear V of a mazda V6 engine - I'd need to dismantle the car to get at it! Kseal worked a treat - no problems even a couple of years on.
Chauhan
Dec 14,2017Best product on the market to seal leaks permanently. Very trustworthy product which seals more areas then your standard stop leak.
Martyn
Dec 14,2017Great product from a great company with a great team. This product works like nothing else I've ever seen. Truly remarkable.
Mike Roscoe
Dec 14,2017great product, great price
Philip
Oct 23,2017Excellent company to work with.
ian barron
Oct 23,2017k -seal is the only radiator sealer i stock, i have tried the rest customers reporting back to me say "it is an excellent product" thats why i have stocked it for a long time.
Mark Nagler
Dec 21,2017BEST LEAK REPAIR ON THE MARKET