---
product_id: 47966279
title: "Holts LOYRW2R Radweld Cooling System Stop Leak & Radiator Repair 250ml"
brand: "holts"
price: "₩25224"
currency: KRW
in_stock: true
reviews_count: 13
category: "Holts"
url: https://www.desertcart.kr/products/47966279-holts-loyrw2r-radweld-cooling-system-stop-leak-and-radiator-repair
store_origin: KR
region: South Korea
---

# Safe, clog-free formula Seals leaks in minutes Prevents future radiator damage Holts LOYRW2R Radweld Cooling System Stop Leak & Radiator Repair 250ml

**Brand:** holts
**Price:** ₩25224
**Availability:** ✅ In Stock

## Summary

> 🛠️ Fix leaks fast, drive stress-free!

## Quick Answers

- **What is this?** Holts LOYRW2R Radweld Cooling System Stop Leak & Radiator Repair 250ml by holts
- **How much does it cost?** ₩25224 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/47966279-holts-loyrw2r-radweld-cooling-system-stop-leak-and-radiator-repair)

## Best For

- holts enthusiasts

## Why This Product

- Trusted holts brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **DIY Friendly:** Simply pour in and save costly repairs or replacements.
- • **Instant Leak Stopper:** Seals radiator and hose leaks fast—no waiting, no mess.
- • **Trusted by Thousands:** 4.5-star rating from over 1,300 users proves it works.
- • **No Clogging, No Damage:** Advanced formula works without harming your cooling system.
- • **Long-Term Radiator Protection:** Prevents future leaks to keep your engine cool and worry-free.

## Overview

Holts LOYRW2R Radweld Cooling System Stop Leak & Radiator Repair (250ml) is a trusted, easy-to-use additive that quickly seals minor radiator and hose leaks without clogging or damage. With a proven formula and high customer satisfaction, it prevents future leaks and saves costly repairs, making it a must-have for proactive vehicle maintenance.

## Description

Holts LOYRW2R Radweld Cooling System Stop Leak & Radiator Repair 250ml : desertcart.co.uk: DIY & Tools

Review: Works well and stops radiator leaks - I used this when the radiator of my 2007 Triumph Sprint ST started to leak slightly. Followed the instructions and it worked. Totally stopping the leak. I have to say it was a small leak, caught pretty early and I suspect this won't work form anything major but it certainly worked for me and saved a physical repair or even replacement radiator.
Review: Works like a charm - Work like a charm- I poured inside my radiator as opposed to instruction. Still works for me

## Features

- May cause damage to organs through prolonged or repeated exposure.
- Suspected of damaging fertility or the unborn child.
- Stops leaks in radiators and hoses
- Seals in minutes with no clogging or damaging effects
- Prevents future leaks
- Simply pour for a repair in minutes
- Holts
- Holts Radweld 250ml
- Seals

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000X2CR74 |
| Best Sellers Rank | 795 in Automotive ( See Top 100 in Automotive ) 7 in Fillers, Adhesives & Sealants |
| Brand | Holts |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,353) |
| Date First Available | 5 Oct. 2007 |
| Item Weight | 259 g |
| Item model number | LOYRW2R |
| Manufacturer | HOLTS |
| Manufacturer part number | RW2R |
| Model | LOYRW2R |
| Product Dimensions | 14 x 7 x 4 cm; 258.55 g |

## Images

![Holts LOYRW2R Radweld Cooling System Stop Leak & Radiator Repair 250ml - Image 1](https://m.media-amazon.com/images/I/81HJccT3lML.jpg)
![Holts LOYRW2R Radweld Cooling System Stop Leak & Radiator Repair 250ml - Image 2](https://m.media-amazon.com/images/I/81tq-HtaWXL.jpg)

## Available Options

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

## Questions & Answers

**Q: What colour liquid is this please ? Will it change the coolant colour. thx**
A: The colour of it is a rusty red and yes it will change the colour of your coolant and really should only be used if you have a leak

**Q: Would this stop coolant leak on my lexus rx400h?**
A: If it's a minor leak on a radiator this is worth a try. Worked for me.

**Q: Will it be safe to mix it with comma xsg1l 1l xstream g48 coolant and antifreeze?**
A: As far as I know it's OK with any coolant. I checked the website and it states it's ok.  I have used it in Audi  Vw  and Renault with no problems.

**Q: I have a Citroen c4 with coolant leak into passenger footwell. How do I use this please?**
A: If the leak is coming from the coolant system, tank ,reservoir or pipes pour this liquid into the filling / top up tank making sure it`s not overfull afterwards, sometimes it takes two bottles ,doing what it says on the tin and hopefully it should do the trick.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works well and stops radiator leaks
*by C***D on 28 June 2024*

I used this when the radiator of my 2007 Triumph Sprint ST started to leak slightly. Followed the instructions and it worked. Totally stopping the leak. I have to say it was a small leak, caught pretty early and I suspect this won't work form anything major but it certainly worked for me and saved a physical repair or even replacement radiator.

### ⭐⭐⭐⭐⭐ Works like a charm
*by P***A on 31 January 2026*

Work like a charm- I poured inside my radiator as opposed to instruction. Still works for me

### ⭐⭐⭐⭐ Worked a treat for a (temporary) repair
*by C***9 on 9 June 2019*

Great stuff. I had a coolant leak on a diesel Smart ForTwo , caused by deterioration of the EGR charge cooler. Coolant loss was to high to risk driving the car to my preferred specialist ... but a dose of Radweld worked an absolute treat and plugged the leak completely. A quick local test drive proved all ok, so I took the chance to drive the car and had absolutely no issues whatsoever. Now its tempting to consider this as a full fix as the car performed 100%, but clearly there's chance of the repair breaking down and a risk I couldn't take, hence the proper repair will be done, but as a "get of jail" fix, the few quid of this stuff was certainly worth a punt (worthy of 5 stars but rated at 4 only because I can't determine how permanent such a "fix" would be).

## Frequently Bought Together

- Holts Radweld 250ml
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**Shop now:** [https://www.desertcart.kr/products/47966279-holts-loyrw2r-radweld-cooling-system-stop-leak-and-radiator-repair](https://www.desertcart.kr/products/47966279-holts-loyrw2r-radweld-cooling-system-stop-leak-and-radiator-repair)

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-02-03*