---
product_id: 47965946
title: "K-Seal Ultimate"
brand: "k-seal"
price: "E£ 7387"
currency: EGP
in_stock: null
reviews_count: 8
url: https://www.desertcart.com.eg/products/47965946-k-seal-ultimate
store_origin: EG
region: Egypt
---

# ceramic micro-fibres seal up to 0.64mm leaks compatible with all coolant types & engines 33% more sealing power K-Seal Ultimate

**Brand:** k-seal
**Price:** E£ 7387
**Availability:** ❌ Out of Stock

## Summary

> 🛠️ Seal it once, drive forever—never let leaks slow your hustle!

## Quick Answers

- **What is this?** K-Seal Ultimate by k-seal
- **How much does it cost?** E£ 7387 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.eg](https://www.desertcart.com.eg/products/47965946-k-seal-ultimate)

## 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

- • **Permanent Power Seal:** 33% stronger formula for a lasting fix on head gaskets & engine blocks
- • **No Hassle Application:** Shake, pour, and drive—no draining or flushing needed
- • **One-Step Leak Stopper:** Ceramic micro-fibres seal cracks and holes up to 0.64mm effortlessly
- • **Universal Engine Compatibility:** Works seamlessly with all coolant types and engine materials, including heavy-duty machinery
- • **Mechanic-Trusted & Lab-Verified:** Millions sold worldwide with ASTM D3147 certification for professional-grade reliability

## Overview

K-Seal Ultimate Head Gasket & Block Repair is a 472ml professional-grade coolant additive that permanently seals leaks up to 0.64mm in head gaskets, cracked heads, and porous engine blocks. Featuring a formula with 33% more sealing power and ceramic micro-fibres, it requires no draining or flushing and works with all coolant types and engine materials. Trusted by mechanics worldwide and independently verified to ASTM D3147 standards, it offers a cost-effective, long-lasting solution to keep your engine running smoothly.

## Description

K-Seal Ultimate Head Gasket & Block Repair | Seal & Fix Coolant Leaks, 472ml

## Features

- PERMANENT REPAIR: Our advanced formula with 33% more sealing power than regular K-Seal, ensures a long-lasting, permanent seal for challenging leaks. Permanently fixes blown head gaskets, cracked heads & porous engine blocks in cars.
- STOP HOLES & CRACKS: With just 1 step our unique formula with ceramic micro-fibres, will permanently seal leaks up to 0.64mm in size, without any adverse impact on the engine.
- EASY TO USE: It requires no draining or flushing; just shake, pour & go - shake the bottle, add the fluid wherever you top up your coolant & run your engine as normal. For larger engines (HGV's / Plant) use 2 bottles.
- VERSATILE COMPATIBILITY: Works with all types of coolant & compatible with a wide range of vehicle engine materials & heavy duty machinery. A permanent fix for the lifetime of the engine.
- PROFESSIONAL-GRADE RELIABILITY: Trusted by mechanics, our sealer treatment delivers a durable & long-lasting repair. A cost-effective head gasket & block repair, enhancing the 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 |
|---------------|-------|
| Manufacturer | K-Seal International Limited |
| Brand | K-Seal |
| Model | K-Seal Ultimate Head Gasket Repair |
| Package Dimensions | 20.2 x 6.9 x 5.6 cm; 540 g |
| Item model number | KSLST3501 |
| Manufacturer part number | KSLST3501 |
| Item Weight | 540 g |

## Product Details

- **Brand:** K-Seal
- **Shape:** Round
- **Manufacturer:** K-Seal International Limited
- **Global Trade Identification Number:** 05060002968109

## Images

![K-Seal Ultimate - Image 1](https://m.media-amazon.com/images/I/71G83KAp7FL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: Hi, just to makes sure, i have vauxhall corsa, coolant's leaked into the engine oil, will this work? many thanks**
A: I am afraid this is a problematic symptom of a head gasket failure to repair as this is liquid to liquid.
We also state that K-Seal is not suitable for coolant to oil or oil to coolant leaks and so any attempt to solve this would be the best efforts only endeavour.

**Q: My volkswagen 1.9 tdi transporter is leaking exhaust gasses into the cooling system and thus over pressuring the system, will this product cure issue?**
A: If the crack in the head thats causing the problems is absolutely tiny then it may fix your problem  but if it's larger than a millimetre or something like that which it states on the bottle somewhere then no it wont fix the problen and unfortunately you'll have to get another head either main Stelar or eBay or something like that...

**Q: I have oil leaking from the engine (v old citroen saxo). will this fix it? is it the right product?**
A: No it will not stop an oil leak. It is designed to go in the coolant system and stop head gasket leaks emitting from the coolant system. If you have oil leaking from the engine at the head gasket you need the cylinder head skimming and the block re-building. If you have oil leaking for elsewhere on the engine, that will need taking apart and rebuilding with new gaskets.

**Q: Have a bmw x5 4.8is v8 petrol. am losing water but only a tiny bit - have used one of these 2 weeks ago  not cured - do i need 2 given engine size?**
A: Hi, no there is no need to use another bottle as K-Seal is calculated by coolant capacity and not engine CC capacity. It is more likely that the leak is so small that the particles are not being drawn out of the cooling system. This is just a case of waiting a little longer for this to happen but I recommend that the engine is run for 15 - 20 mins each day if the car is not used on a regular basis. You can also email me directly if that is easier to info@kseal.com FAO Colin.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Worked with heavily modified car, temp fix.
*by A***R on 1 March 2023*

The product works great, had to unfortunately use it on my stage 3 3l a5 diesel. Temporary fix, While while I rebuild the engine, but it worked immediately, I have tried others, steel seal etc. None worked except this, however, I do believe it did damage the thermostat, but I can't say it definitely was this. Recommend.

### ⭐ Didn’t work for me may for you
*by L***T on 12 August 2025*

Did not work for me sadly only a very small amount of steam from head gasket but still failed to seal

### ⭐⭐⭐⭐⭐ If it worked
*by J***P on 16 July 2025*

Well what ever I done with this it resolved the issue and has saved me over£800 for repair, works well, had no bother since applying it

## Frequently Bought Together

- K-Seal Ultimate Head Gasket & Block Repair | Seal & Fix Coolant Leaks, 472ml
- K-Seal ST5501 Multi-Purpose One Step Permanent Coolant Leak Repair, 8oz, Pour and Go, Mixes with All Antifreeze, No Flushing Required

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*Product available on Desertcart Egypt*
*Store origin: EG*
*Last updated: 2026-01-26*