---
product_id: 261494416
title: "J-B Weld, Radiator and Plastic Repair Kit, 2120, 59 grams"
brand: "j-b weld"
price: "€ 37.91"
currency: EUR
in_stock: true
reviews_count: 6
category: "J B Weld"
url: https://www.desertcart.gr/products/261494416-j-b-weld-radiator-and-plastic-repair-kit-2120-59
store_origin: GR
region: Greece
---

# Repairs holes up to 3/8" & cracks up to 4" Quick fix, no tank removal needed Permanent professional-grade bond J-B Weld, Radiator and Plastic Repair Kit, 2120, 59 grams

**Brand:** j-b weld
**Price:** € 37.91
**Availability:** ✅ In Stock

## Summary

> 🛠️ Seal the deal with confidence—don’t let leaks slow your hustle!

## Quick Answers

- **What is this?** J-B Weld, Radiator and Plastic Repair Kit, 2120, 59 grams by j-b weld
- **How much does it cost?** € 37.91 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/261494416-j-b-weld-radiator-and-plastic-repair-kit-2120-59)

## Best For

- j-b weld enthusiasts

## Why This Product

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

## Key Features

- • **Trusted Legacy:** Over 40 years of innovation and reliability trusted by pros and DIYers alike.
- • **Complete Repair Kit:** Includes epoxy putty, fiberglass cloth, sandpaper, and applicator for a professional finish every time.
- • **Effortless Leak Stopping:** Fix radiator and plastic tank leaks without dismantling—save time and hassle.
- • **Precision Repair Capacity:** Seals holes up to 3/8" diameter and cracks up to 4" long—perfect for critical radiator fixes.
- • **Durable, Long-Lasting Bond:** State-of-the-art epoxy putty and fiberglass cloth create a repair that stands the test of time.

## Overview

J-B Weld Radiator and Plastic Repair Kit 2120 offers a professional-grade, permanent solution for radiator and plastic tank leaks. This 59-gram kit includes epoxy putty, fiberglass cloth, sandpaper, and an applicator, enabling quick repairs of holes up to 3/8" and cracks up to 4" without removing the tank. Trusted for over 40 years, it delivers durable, leak-stopping performance favored by automotive pros and DIY enthusiasts.

## Description

Buy J-B Weld, Radiator and Plastic Repair Kit, 2120, 59 grams online on desertcart.ae at best prices. ✓ Fast and free shipping ✓ free returns ✓ cash on delivery available on eligible purchase.

Review: Received damaged - I've received the item in bad condition and damaged
Review: Quick fix which lasts - Fantastic. This worked really well and hasn’t leaked after 2 months driving. Quick fix and long lasting solution.

## Features

- RADIATORWELD: Our radiator and plastic tank repair kit has all you need for making professional quality, permanent repairs with state of the art components and easy to follow instructions.
- COUNT ON US: For more than 40 years, our products have earned a loyal following from people who take pride in their work. With each product we innovate, we continue to provide the world's strongest bond for your projects.
- SIMPLE TO USE: No removal of tank or radiator is required to stop leaks. Easily fix holes up to 3/8" diam. or cracks up to 4" long. Includes epoxy putty, fiberglass cloth, sandpaper, and applicator.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01IOPE66G |
| Best Sellers Rank | #18,991 in Automotive ( See Top 100 in Automotive ) #95 in Automotive Fillers, Adhesives & Sealants |
| Brand | J-B Weld |
| Brand Name | J-B Weld |
| Compatible Material | Metal |
| Container Type | Tube |
| Country Of Origin | USA |
| Customer Reviews | 4.0 out of 5 stars 1,028 Reviews |
| Global Trade Identification Number | 00043425021205 |
| Included Components | Epoxy Putty^Fiberglass Cloth^Sand Paper^Applicator Brush |
| Item Form | Putty |
| Item Package Quantity | 1 |
| Item Type Name | Radiator and Plastic Repair Kit |
| Item Weight | 50 Grams |
| Item form | Putty |
| Item package quantity | 1 |
| Manufacturer | JBWeld |
| Material | Plastic Resin |
| Material Type | Plastic Resin |
| Model | 2120 |
| Number of Pieces | 1 |
| Other Special Features of the Product | Stops Leaks |
| Part Number | 2120 |
| Special features | Stops Leaks |
| Specific Uses For Product | Radiator and Plastic Repair |
| Specific uses for product | Radiator and Plastic Repair |
| UPC | 043425021205 |
| Unit Count | 1 Count |
| Warranty Description | 1 |

## Product Details

- **Brand:** J-B Weld
- **Item form:** Liquid
- **Item package quantity:** 1
- **Material:** Plastic Resin
- **Unit count:** 1 Count

## Images

![J-B Weld, Radiator and Plastic Repair Kit, 2120, 59 grams - Image 1](https://m.media-amazon.com/images/I/71jfMGwMIFL.jpg)
![J-B Weld, Radiator and Plastic Repair Kit, 2120, 59 grams - Image 2](https://m.media-amazon.com/images/I/811dGeBkMrL.jpg)
![J-B Weld, Radiator and Plastic Repair Kit, 2120, 59 grams - Image 3](https://m.media-amazon.com/images/I/910wemEMChL.jpg)
![J-B Weld, Radiator and Plastic Repair Kit, 2120, 59 grams - Image 4](https://m.media-amazon.com/images/I/91BOjpX4AiL.jpg)

## Questions & Answers

**Q: Does this work on aluminum ?**
A: Yes, it is absolutely miraculous. It exceeded my expectations.

**Q: why it is temp fix? crack due to vibration? how long it can last?**
A: It will usually last a year as long as the car does not overheat which can cause too much pressure on the patched area

**Q: Does j-b weld 2120 really work on radiatots?**
A: It does if you work fast with it.

**Q: I have a leak on a small stem (i think is aluminum) at the seam that holds a small rubber hose that antifreeze runs though, the small stem gets hot.**
A: My honest opinion is this isn't going to work for your issue.... I used this on my plastic radiator at the top in small crack. It worked for couple weeks and had to buy new radiator...  don't waste your money

## Customer Reviews

### ⭐ Received damaged
*by K***D on 26 December 2025*

I've received the item in bad condition and damaged

### ⭐⭐⭐⭐⭐ Quick fix which lasts
*by G***L on 23 February 2025*

Fantastic. This worked really well and hasn’t leaked after 2 months driving. Quick fix and long lasting solution.

### ⭐⭐⭐⭐⭐ Good sealer
*by D***N on 23 December 2024*

It worked for my BMW E83. I had a pin hole on the aluminum radiator at fan side, on fluid tube between micro zig zac fins. I put half of this J-B glue on in a rush, hoping it would work. but it didn't. I checked myself for the reason why it didn't work, and concluded that 1. didn't make the area dry -at the time when I put the glue on there was wet fluid running, 2. didn't mix the glue thoroughly -I was afraid that I would have no time to put the glue on before it hardens as read of the comments by others. Before the 2nd time, remove the zig zac micro fins around the tube, made sure that no fluid running toward outside, then put just a little RTV SupperBlack first to seal the pin hold, wait for it cured, them take good time to mix the glue crazily -no worry about that it would harden in one minute, no it won't, at least in about 10 minute it won't. Put the well mixed glue on the area around, first layer then fiber, then then another layer then wait over night. The next morning it became hard and shine with nice color. More important, no leaking. As I like it, I bought another pack keeping it for spare.

## Frequently Bought Together

- J-B Weld 2120 Radiator Repair Kit
- J-B Weld High Heat Epoxy Syringe, Dark Grey
- J-B Weld 8297 HighHeat 500 Degree Epoxy Putty Stick - 2 oz. , Grey

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-08-29*