---
product_id: 32648339
title: "J-B Weld 2120 Radiator Repair Kit"
brand: "j-b weld"
price: "€ 32.90"
currency: EUR
in_stock: true
category: "J B Weld"
url: https://www.desertcart.pt/products/32648339-j-b-weld-2120-radiator-repair-kit
store_origin: PT
region: Portugal
---

# Versatile on plastics & metals No removal, quick leak fix Permanent professional-grade bond J-B Weld 2120 Radiator Repair Kit

**Brand:** j-b weld
**Price:** € 32.90
**Availability:** ✅ In Stock

## Summary

> 🛠️ Seal it, fix it, forget it — the ultimate radiator rescue kit!

## Quick Answers

- **What is this?** J-B Weld 2120 Radiator Repair Kit by j-b weld
- **How much does it cost?** € 32.90 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/32648339-j-b-weld-2120-radiator-repair-kit)

## 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

- • **All-in-One Kit:** Includes epoxy putty, fiberglass cloth, sandpaper & applicator brush
- • **Pro-Level Durability:** Engineered for permanent, waterproof repairs that last
- • **Multi-Surface Mastery:** Works seamlessly on radiators, plastic tanks, PVC, composites & more
- • **Effortless Leak Repair:** Fix holes up to 3/8" and cracks up to 4" without removing parts
- • **World’s Strongest Bond:** Trusted for 40+ years by pros and DIYers alike

## Overview

J-B Weld 2120 Radiator Repair Kit delivers a professional-grade, permanent solution for radiator and plastic tank leaks without the hassle of removal. Featuring a complete set of epoxy putty, fiberglass cloth, sandpaper, and applicator, it repairs holes up to 3/8" and cracks up to 4" on multiple surfaces including metal and plastic. Trusted for over 40 years, this versatile kit is a must-have for mechanics and DIY enthusiasts seeking durable, waterproof fixes.

## Description

Plastic Tank & Radiator Repair Kit. Works on Plastic Tanks & Metal Surfaces. Stops Leaks. No Removal Required.

## 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.
- VERSATILE & DEPENDABLE: Great for radiators, washer fluid tanks, storage tanks, water tanks, plastics, composites, PVC and more. Professionals, mechanics and avid DIYers know J-B gets the job done.
- NO PROJECT TOO BIG OR TOO SMALL: We have all the products you need to get the job done right. JB Weld always delivers the legendary performance of the World's Strongest Bond.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01IOPE66G |
| Best Sellers Rank | #12,423 in Automotive ( See Top 100 in Automotive ) #1 in Radiator Sealers #700 in Oils & Fluids |
| Brand Name | J-B Weld |
| Compatible Material | Metal |
| Customer Reviews | 4.0 4.0 out of 5 stars (1,075) |
| Global Trade Identification Number | 00043425021205 |
| Included Components | Epoxy Putty^Fiberglass Cloth^Sand Paper^Applicator Brush |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Type Name | Radiator and Plastic Repair Kit |
| Item Weight | 50 g |
| Manufacturer | JBWeld |
| Material Type | Plastic, Resin |
| Model | 2120 |
| Number of Pieces | 1 |
| Other Special Features of the Product | No Removal Required |
| Part Number | 2120 |
| Specific Uses For Product | Repair |
| UPC | 043425021205 |
| Unit Count | 1 Count |
| Warranty Description | As Labelled |

## Product Details

- **Brand:** J-B Weld
- **Item Form:** Liquid
- **Material:** Plastic, Resin
- **Special Feature:** No Removal Required
- **Specific Uses For Product:** Repair

## Images

![J-B Weld 2120 Radiator Repair Kit - Image 1](https://m.media-amazon.com/images/I/71jfMGwMIFL.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

## 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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**Shop now:** [https://www.desertcart.pt/products/32648339-j-b-weld-2120-radiator-repair-kit](https://www.desertcart.pt/products/32648339-j-b-weld-2120-radiator-repair-kit)

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-09-27*