--- product_id: 109526954 title: "J-B Weld 2120 Radiator Repair Kit" brand: "j-b weld" price: "R$608" currency: BRL in_stock: true reviews_count: 7 category: "J B Weld" url: https://www.desertcart.com.br/products/109526954-j-b-weld-2120-radiator-repair-kit store_origin: BR region: Brazil --- # Repairs holes up to 3/8" & cracks 4" No tank removal, quick fix Permanent professional-grade bond J-B Weld 2120 Radiator Repair Kit **Brand:** j-b weld **Price:** R$608 **Availability:** ✅ In Stock ## Summary > 🛠️ Seal it, fix it, forget it—your radiator’s new best friend! ## Quick Answers - **What is this?** J-B Weld 2120 Radiator Repair Kit by j-b weld - **How much does it cost?** R$608 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/109526954-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 - • **Versatile & Reliable:** Works on metal, plastic, composites, PVC—trusted by pros and DIYers alike. - • **All-in-One Repair Kit:** Includes epoxy putty, fiberglass cloth, sandpaper, and applicator for a seamless DIY experience. - • **Durability You Can Trust:** Backed by 40+ years of innovation delivering the world’s strongest bond. - • **Effortless Leak Stopping:** Fix radiator and plastic tank leaks without removing parts—save time and hassle. - • **Precision Repair Capacity:** Effectively seals holes up to 3/8" diameter and cracks up to 4" long for lasting results. ## Overview The J-B Weld 2120 Radiator Repair Kit offers a professional-grade, permanent solution for radiator and plastic tank leaks. Designed for quick, no-removal repairs, it includes epoxy putty, fiberglass cloth, sandpaper, and an applicator to fix holes up to 3/8" and cracks up to 4". Trusted for over 40 years, this versatile kit works on metal, plastic, composites, and PVC, making it a must-have for mechanics and DIY enthusiasts seeking durable, reliable fixes. ## Description Plastic Tank & Radiator Repair Kit. Works on Plastic Tanks & Metal Surfaces. Stops Leaks. No Removal Required. Review: It does what is claimed in the advert. - Worked perfectly for the minor repair on my motorcycle radiator after following the simple instructions before hand. Easy to use, 100% successes and well worth the wait from its USA seller. Review: Jb weld excellent - Very good product excellent service recommended 5stars ## Features - Causes serious eye irritation. - Causes skin irritation. - May cause an allergic skin reaction. - 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 | 97,870 in Automotive ( See Top 100 in Automotive ) 525 in Fillers, Adhesives & Sealants | | Brand | J-B Weld | | Compatible Material | Metal | | Country Of Origin | USA | | Customer Reviews | 4.0 out of 5 stars 1,020 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 | | Manufacturer Part Number | 2120 | | Material | Plastic Resin | | Model Number | 2120 | | Number of Pieces | 1 | | Other Special Features of the Product | Stops Leaks | | Special feature | Stops Leaks | | Specific Uses For Product | Radiator and Plastic Repair | | Specific uses for product | Radiator and Plastic Repair | | UPC | 043425021205 | | Unit Count | 1.0 count | ## 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) ![J-B Weld 2120 Radiator Repair Kit - Image 2](https://m.media-amazon.com/images/I/811dGeBkMrL.jpg) ![J-B Weld 2120 Radiator Repair Kit - Image 3](https://m.media-amazon.com/images/I/910wemEMChL.jpg) ![J-B Weld 2120 Radiator Repair Kit - 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 ### ⭐⭐⭐⭐⭐ It does what is claimed in the advert. *by M***N on 16 August 2025* Worked perfectly for the minor repair on my motorcycle radiator after following the simple instructions before hand. Easy to use, 100% successes and well worth the wait from its USA seller. ### ⭐⭐⭐⭐⭐ Jb weld excellent *by J***N on 4 February 2026* Very good product excellent service recommended 5stars ### ⭐⭐⭐⭐⭐ 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. ## 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 --- ## 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.com.br/products/109526954-j-b-weld-2120-radiator-repair-kit](https://www.desertcart.com.br/products/109526954-j-b-weld-2120-radiator-repair-kit) --- *Product available on Desertcart Brazil* *Store origin: BR* *Last updated: 2026-08-19*