K-Seal Plastic Permanent COOLANT Leak Repair Liquid 236Ml - Stop Radiator Leak, Head Gasket Repair,Block/Head Sealer-No Draining/No Flushing,for All Cars, Light Trucks, Heavy Trucks & Buses, 1 Can

The leakage issue has been fixed and the system is now working even better than expected as recommended.

Works best for coolant leakage. I personally checked my car coolant levels for 1 week and are still the same no lekage.

Edit: Did not work for me. After few days and another bottle of Kseal, the leak was getting severe, drive it almost 1 month with Kseal in it, no result. Decided it will be my last attempt, I bought rislone headgasket fix, which completely fixed the problem at last, no more combustion gas in the reservoir or boiling. Rislone contain sodium silicate, it seems sodium silicate do the job, whereas Kseal did not contain sodium silicate.--- end - - - -My car often overheat, air bubbles in radiator and it would blow all the coolant out in reservoir and did not even return to radiator due to air pressure from blown head gasket. Once it overheat, I had to suck coolant from reservoir and manually fill in radiator. Sometimes coolant will overflow from the reservoir tank. I enquire several workshop and they confirm its blow headgasket and the minimum charges will be ₹50,000 and I was told it can vary even till ₹1lakh!! With despair I started to check several reddit comments in self repair and luckily I had gone through this product K-Seal.The day this product it arrived, I did everything as instructions, fill full bottle in my suv radiator and I am very disappointed with the results as I didn't see any instant results as some stated in the comments. I didn't flash the K-Seal and let in inside the radiator whole night. Next day I started the engine, trying to park and lift my vehicle 45% incline as advance guide manual for blown gasket treatment, but did see any results even on 2nd day.After 3 days, I took the vehicle with full passanger inside my car, and if the load is heavy my car tend to overheat easier. Went to see football match and as we are about to go home, I check the coolant tank, to my surprise, all the overflow is suck back to radiator which never happen. Once I started the vehicle, I notice the engine sound change and began to drive smoothly.I purposely drive on 1-2-3 gear for a long time to see if its overheating (with blown headgasket, it definitely overheat in bigger gear) but to my surprise, nothing happened. Now engine is in normal condition and cooling system work fine as it suppose to be.My advice is not to flash K-Seal even though it may not work instantly, but it will work eventually. I even thought my car damage is too big, even K-Seal can no longer do its job. In advance repair guide, K-Seal mentioned that it may take 10 days (in cool & hot engine cycle process). I wish K-Seal made that instructions/expectations in the bottle instruction but which is only available at their website. I'll try to update this comment after few months or if any failure happens again in future.I am from Bangalore, India. Youtube channel: Daniel Lalzuitluanga

के सेल एक अच्छा प्रोडक्ट है पहले मुझे लगा की रनिंग टाइम में इंजन के बाद हीटर core में कूलेंट लीक हो रहा था मुझे लगा मैंने पैसे वेस्ट कर दिए वेट की तो इंजन बंद करने के कुछ मिनट बाद ही लीकेज टोटल बंद हो चुकी थी और उसके बाद दोबारा लीकेज नहीं हुई धन्यवाद यह एक अच्छा उत्पादन है

எனது swift dezire car இல் coolant level குறைந்து கொண்டே இருந்தது. இன்ஜின் ஹெட் வேலை பார்த்தும் சரியாகவில்லை. மெக்கானிக் முழு இன்ஜின் வேலை பார்க்க பரிந்துரைத்தார். பிறகு அமேசானில் review பார்த்து இப்பொருளை வாங்கி coolant tank இல் விட்டேன். பிரச்சனை சரியாகிவிட்டது. நன்றி

There was a minor leak in my cars radiatorWhere as i have to top up the coolant in every 3 days.It confirmed that it’s a time consuming process and expensive as well.Then I saw about Kseal leak repairI used it and I am totally satisfied with the resultAlso I am posting this review after a monthTotally issue resolvedThanks for such a great product

I had observed oil leak signs in the coolant, Probably faulty oil cooler gasket or Engine head gasket. I poured this liquid to the radiator and drove my Thar crde for almost 30minutes.Next day had gone for 400kms drive as well. No further oil leakage. Coolant looks clean now.Its been almost 3 weeks now. Oil mixing with coolant has stopped perfectly.

Don't buy does not work as claimed.... Radiator still leaking

Seems to stop leaking from plastic header of the radiator.

Salut à tous j'ai acheté le 16 Mars 2026 il a duré 4 mois sur ma clio 2 phase 2 de 2003 pour moi excellent produit et simple a utiliser juste a mettre dans le bol de liquide refroidissement voilà

merhaba aracımda 2-3 günde 50-60 km kullanım sonrasında 500 ml kadar ciddi bir su eksiltme problemi vardı 20 şubat günü ürünü kullanım talimatına uygun olarak yedek depo içinde full antifiriz varken kullandım ilk kullanım sonrası 250 ml kadar bir eksiltme yaptı üzerini max çizgisine kadar tekrar antifiriz ile tamamladım 45 gün kadar oldu her hangi bir eksiltme olmadı şu an için daha önce kulladığım bir çok üründen daha başarılı

Ich habe dieses Produkt bereits mehrfach bei verschiedenen Fahrzeugen verwendet. Es hat jedes Mal zuverlässig funktioniert und kleinere Undichtigkeiten im Kühlsystem erfolgreich abgedichtet. Die Anwendung ist einfach und das Produkt hat sich für mich bewährt. Ich bin sehr zufrieden und kann es weiterempfehlen.

Fungerade mycket bra. Jag är nöjd. Bara att skaka burke jättenoga först. Sen hel i allt