--- product_id: 47965944 title: "K-Seal" brand: "k-seal" price: "£17.79" currency: GBP in_stock: true reviews_count: 13 url: https://www.desertcart.co.uk/products/47965944-k-seal store_origin: GB region: United Kingdom --- # Permanent multi-engine repair Seals leaks in minutes Compatible with all coolants K-Seal **Brand:** k-seal **Price:** £17.79 **Availability:** ✅ In Stock ## Summary > 🚗💨 Leak-proof your ride, effortlessly! ## Quick Answers - **What is this?** K-Seal by k-seal - **How much does it cost?** £17.79 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/47965944-k-seal) ## Best For - k-seal enthusiasts ## Why This Product - Trusted k-seal brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Pour, Run, Relax:** No draining or flushing needed—just shake, pour, and keep moving. - • **Fix It Fast, Drive Faster:** Seals radiator, head gasket & more in minutes—no downtime, no hassle. - • **Mechanic-Trusted Durability:** Backed by millions sold & ASTM-certified for professional-grade reliability. - • **One-Step Leak Sealing Magic:** Unique formula hunts and seals every crack and hole permanently. - • **Universal Coolant Compatibility:** Works seamlessly with all antifreeze types for cars & light trucks up to 12 cylinders. ## Overview K-Seal is a professional-grade, multi-purpose liquid sealer that permanently fixes leaks in water-cooled engines including radiators, head gaskets, freeze plugs, and more. It works in minutes without draining or flushing, is compatible with all antifreeze coolants, and is trusted worldwide with ASTM D3147 certification ensuring durable, long-lasting engine cooling system repairs. ## Description ["https://m.media-desertcart.com/images/S/aplus-media-library-service-media/5b7065d4-a97c-4344-bb87-9f0ee7df3dec.__CR0,0,2928,1250_PT0_SX1464_V1___.jpg", "https://m.media-desertcart.com/images/S/aplus-media-library-service-media/1e21b0a3-0105-4812-94d2-5f0a541e4181.__CR0,0,362,453_PT0_SX362_V1___.jpg", "https://m.media-desertcart.com/images/S/aplus-media-library-service-media/21ef49ae-d8ff-4c79-b993-c3d8e100017e.__CR0,0,362,453_PT0_SX362_V1___.jpg", "https://m.media-desertcart.com/images/S/aplus-media-library-service-media/dca85036-ea4f-4a51-bbe3-9e83cf9e9807.__CR0,0,362,453_PT0_SX362_V1___.jpg", "https://m.media-desertcart.com/images/S/aplus-media-library-service-media/22e928e2-7fb7-42e4-b725-26317b0f4907.__CR0,0,362,453_PT0_SX362_V1___.jpg", "https://m.media-desertcart.com/images/S/aplus-media-library-service-media/86e14d4d-226a-4a88-9dd1-80915be859d7.__CR0,0,362,453_PT0_SX362_V1___.jpg", "https://m.media-desertcart.com/images/S/aplus-media-library-service-media/afbfa6d8-64c6-4cac-977c-9a3adb2e787b.__CR0,0,362,453_PT0_SX362_V1___.jpg", "https://m.media-desertcart.com/images/S/aplus-media-library-service-media/58e3d403-9197-4938-b973-eef309b4ccb5.__CR0,0,362,453_PT0_SX362_V1___.jpg", "https://m.media-desertcart.com/images/S/aplus-media-library-service-media/5bc6c3c5-c3bf-4447-b40c-dfaa4f758bf7.__CR0,0,362,453_PT0_SX362_V1___.jpg", "https://m.media-desertcart.com/images/S/aplus-media-library-service-media/779e3f64-111a-4823-a8b5-b53b6d71bce5.__CR0,0,362,453_PT0_SX362_V1___.jpg", "https://m.media-desertcart.com/images/S/aplus-media-library-service-media/1c13cf7b-3ae5-4761-ad84-5f17d1e307f8.__CR0,0,970,600_PT0_SX970_V1___.jpg", "https://m.media-desertcart.com/images/S/aplus-media-library-service-media/b5e4c909-4861-4548-86cf-59b823f9f426.__CR0,0,970,600_PT0_SX970_V1___.jpg", "https://m.media-desertcart.com/images/S/aplus-media-library-service-media/e5fec73c-cc2c-4f51-bbb9-3dbcf81c1ed4.__CR0,0,970,600_PT0_SX970_V1___.jpg", "https://m.media-desertcart.com/images/S/aplus-media-library-service-media/0655c540-14d8-477b-9789-39ed947de27a.__CR0,0,970,600_PT0_SX970_V1___.jpg", "https://m.media-desertcart.com/images/S/aplus-media-library-service-media/6aa806fe-2288-498a-85d6-52544a3235d7.__CR0,0,970,600_PT0_SX970_V1___.jpg", "https://m.media-desertcart.com/images/S/aplus-media-library-service-media/f937ec04-b51a-493d-9349-a8edf7283881.__CR0,0,970,600_PT0_SX970_V1___.jpg"] ## Features - FIX IT FAST: Our multi-purpose solution works in minutes to quickly & permanently seal leaks in the radiator, head gasket, freeze plugs, block, heater matrix & water pump. Fixes most leaks in water-cooled engines. - STOP HOLES & CRACKS: With just 1 step our unique formula will seek out each hole & crack, permanently sealing them, without any adverse impact on the efficiency of your engine cooling. - EASY TO USE: K-Seal couldn't be simpler to use & requires no draining or flushing; just shake, pour & go - shake the bottle, add the fluid to your coolant system & run your engine as normal. - VERSATILE COMPATIBILITY: Compatible with all types of antifreeze coolant. Suitable for use in both cars & light trucks with up to 12 cylinders. A permanent repair for the lifetime of the engine. - PROFESSIONAL-GRADE RELIABILITY: Trusted by mechanics, our sealer delivers a durable & long-lasting repair. A cost-effective solution to engine coolant leaks, enhancing the reliability & performance of your vehicle’s cooling system. We've sold millions worldwide & are independently verified by university testing to meet ASTM D3147. ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B001QT9KO6 | | Best Sellers Rank | 750 in Automotive (See Top 100 in Automotive) 9 in Fillers, Adhesives & Sealants | | Brand | K-Seal | | Colour | clear | | Compatible Material | Alloy Steel, Aluminium, Brass, Copper, Engineered Wood, Fibreglass, Polyvinyl Chloride, Stainless Steel, Plastic | | Country Of Origin | United Kingdom | | Customer Reviews | 4.4 4.4 out of 5 stars (13,374) 4.4 out of 5 stars | | Global Trade Identification Number | 05060002968017 | | Item Dimensions | 8.9 x 3.8 x 11.4 centimetres | | Item Form | Liquid | | Item Weight | 0.26 Kilograms | | Manufacturer | K-Seal | | Manufacturer Part Number | ST5501 | | Material | Synthetic Resin | | Model Number | ST5501 | | Number Of Items | 1 | | Style Name | Compact | | Supported Standards | ASTM D3147 | | Surface Recommendation | Vent, Countertop, Sink, Wall | | Unit Count | 236.0 millilitre | | Upc | 367157659506 812646010004 | | Water Resistance Level | Water Resistant | ## Product Details - **Brand:** K-Seal - **Item dimensions L x W x H:** 8.9 x 3.8 x 11.4 centimetres - **Item weight:** 0.26 Kilograms - **Material:** Synthetic Resin - **Style:** Compact ## Images ![K-Seal - Image 1](https://m.media-amazon.com/images/I/71nZSCfSgpL.jpg) ![K-Seal - Image 2](https://m.media-amazon.com/images/I/819uEbwQheL.jpg) ![K-Seal - Image 3](https://m.media-amazon.com/images/I/81nL0s1QdfL.jpg) ![K-Seal - Image 4](https://m.media-amazon.com/images/I/81MST4eSl3L.jpg) ![K-Seal - Image 5](https://m.media-amazon.com/images/I/81yyccSl46L.jpg) ## Questions & Answers **Q: How much would I need for a cooling system of 8.5 litres?** A: I think one purchase should be sufficient , just Google and double check. **Q: What long term damage doe's it do to the engine and water system** A: I used this in a 2004 Rover Streetwise that I bought in 2012. I used as a preventative measure as that particular engine was notorious for headgasket failure and the car is still running in 2022 never having had a problem with the engine except an alternator, so I would say long term damage is ZERO. I have used it in all my cheap runaround cars I have bought as my 3 sons got thier first cars and never had problems with it. Overall it seems to me to be a great product. **Q: Im doing a coolant flush but when i fill the system back up do i fill with plan water or antifreeze to add the k seal** A: fill system up as normal using antifreeze and add k-seal **Q: How much would I need to use for a 1.2L vehicle? Is it the whole bottle or part of the bottle?** A: I used 2 for a two litre car and sorted my issue which was a head gasket problem. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Amazing results *by on Reviewed in the United Kingdom 21 May 2026* Well well well, this small bottle of liquid worked perfectly, and months later still no leaks. So happy ### ⭐⭐⭐⭐⭐ Really good product for fixing small hard to locate leaks without getting a mechanic to sort it *by on Reviewed in the United Kingdom 14 June 2026* Great product. I had a difficult to locate leak on my cooling system, the tank was empty/below the minimum line every morning. I topped up with new coolant to minimum, added all the KSEAL, then finished topping up with coolant to just above the max line & took the car for a good half an hour drive with the heating cranked up to max for the duration of the drive.Check my levels this morning & I haven't lost any coolant overnight. Perfect product for fixing the job. ### ⭐⭐⭐⭐ K-Seal seems to be working, and save myself £800 *by on Reviewed in the United Kingdom 19 May 2026* My water pump was leaking, it cost me £800!! to have a new one fitted, only to learn that this is an ongoing problem with AudQ5, low and behold, about 2 years later, this new water pump started leaking also!! I did not want pay out another £800 or more, so I looked for another remedy, and came across this K-seal, I was in two minds some reviews were positive, some were not, the one that caught my eye said, you need to follow the instructions and shake the bottle vigorously, which i did and poured into coolant tank, then let the engine reach normal operating temperature, then i drove my Audi around for a good 20 minutes, I mixed the K- seal in mid April 2026 and its now mid May, there is NO leakage, so hopefully its all working, i will keep an on it, and give another update if any leaks return, otherwise I will update at the end of the year!! ## Frequently Bought Together - K-Seal ST5501 Multi-Purpose One Step Permanent Coolant Leak Repair, 8oz, Pour and Go, Mixes with All Antifreeze, No Flushing Required - PEAK 50/50 Prediluted Antifreeze and Coolant for All Engine Cooling Systems - K-Seal ST3501 Pour and Go Head Gasket Sealer, 16oz, Permanent Repair for Blown Head Gaskets, Cracked Heads and Blocks --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/47965944-k-seal](https://www.desertcart.co.uk/products/47965944-k-seal) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-26*