JB Weld is a two-part epoxy adhesive that can be used to repair damaged radiators. It is one of the best solutions for fixing a leaky radiator, as it creates an incredibly strong bond that will last for years. It is also resistant to extreme temperatures, making it perfect for high-heat applications like a radiator.
With so many jb weld for radiator brands on the market like J-B Weld, it can be tough to know which one is right for you. Don’t worry, we’ve got you covered.1. J-B Weld 2120 Radiator Repair Kit
Our Rating
- 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.
2. J-B Weld High Heat Epoxy Syringe, Dark Grey
Our Rating
- J-B Weld HighHeat is a two-part epoxy system that provides strong, lasting, heat-resistant repairs up to 550°F. Mixed at a ratio of 1:1, it forms a permanent bond that has a 4730 PSI strength and is chemical and fuel resistant. At room temperature, HighHeat sets in 1 hour and cures in 24 hours. HighHeat’s cure time is accelerated by heat and can cure in 1 hour at 250°F.
- CURE AND SET TIME: At room temperature, HighHeat sets in 1 hour and cures in 24 hours. HighHeat’s cure time is accelerated by heat and can cure in 1 hour at 250°F.
- PRODUCT FEATURES AND STRENGTH: J-B Weld HighHeat is a two-part epoxy system that provides strong, lasting, heat-resistant repairs up to 550°F. Mixed at a ratio of 1:1, it forms a permanent bond that has a 4730 PSI strength and is chemical and fuel resistant.
- SURFACE APPLICATIONS: Metal, Plastic & PVC, Wood, Concrete, Ceramic & Tile and Fiberglass
3. J-B Weld 8281 Professional Size Steel Reinfor
Our Rating
- J-B WELD ORIGINAL PRO SIZE: Professional 5 OZ Tubes of the Original Cold Weld two-part epoxy system that was designed as an alternative to torch welding. J-B Weld Original provides strong, lasting repairs to multiple surfaces and creates a bond stronger than steel. Perfect for DIY household, automotive, marine, craft repair and much more.
- CURE AND SET TIME: After mixing the tubes at a 1:1 ratio, it takes 4-6 hours to set and 15-24 hours to cure. Once cured J-B Weld Original can be tapped, filled, sanded, molded and drilled. J-B Weld Original set and cure color is dark grey.
- VERSATILE AND DEPENDABLE: J-B Weld Original is steel reinforced, has a tensile strength of 5020 PSI and can withstand temperatures up to 550 degrees Fahrenheit (287 degrees Celsius. When fully cured, J-B Weld Original is waterproof and resistant to petroleum, chemical and acid.
- SURFACE APPLICATIONS: Metal, Plastic & PVC, Wood, Concrete, Ceramic & Tile and Fiberglass.
- DO IT YOURSELF: Big or small, you can DIY it with J-B Weld. Our heavy duty epoxy and adhesives repair & restore it right the first time. J-B Weld delivers superior performance, quality, and results for the World’s Strongest Bond.
4. J-B Weld 8277 WaterWeld Epoxy Putty Stick – 2
Our Rating
- J-B WELD WATERWELD: A hand mixable two part epoxy putty stick, that can cure under water and is ideal for repairing plumbing, fuel tanks, tubs and showers, drains, pool and spa, boats & potable water tanks and more! J-B Weld WaterWeld is certified by the NSF and is safe for contact with potable water.
- CURE AND SET TIME: After kneading the two part formula together by hand, WaterWeld takes 25 minutes to set and cures in 1 hour. J-B Weld WaterWeld set and cure color is off white.
- PRODUCT FEATURES AND STRENGTH: J-B Weld WaterWeld has lap shear strength of 1300 PSI, can withstand continuous temperatures up to 300F (149C) and intermittent temperatures of 350F (176 degrees Celsius) and is chemical resistant against petroleum, hydraulic fluids and other chemicals when fully cured.
- SURFACE APPLICATIONS: Iron & Stainless Steel, Copper & Brass, Aluminum & Bronze, Fiberglass and Plastic & PVC.
- DO IT YOURSELF: Big or small, you can DIY it with J-B Weld. Our heavy duty epoxy and adhesives repair & restore it right the first time. J-B Weld delivers superior performance, quality, and results for the World’s Strongest Bond.
5. J-B Weld 37901 ExtremeHeat High Temperature R
Our Rating
- Jb Weld Extreme Heat: Is Formulated For Repairs To Iron, Steel And Metal In High Temperature Environments 1000°F / 537°C. Non-Flammable, It Contains No Solvents Or Volatile Organic Compounds (Vocs).
- The Original Cold Weld: Jb Weld Was Developed As An Alternative To Torch Welding. Designed To Be Effective In Extreme Environments, Once It Sets, It Creates A Permanent Bond Stronger Than Steel.
- Simple To Use: When Fully Cured, This Metallic Compound Can Be Drilled, Machined Or Sanded. It Is Great For Repairing Cracks, Small Gaps, Seam Connections Or Holes.
- Versatile & Dependable: Ideal For Repair Work On : Exhaust Manifolds, Pipe Connections, Mufflers, Catalytic Converters, Outdoor Grills, Fire Boxes, Gas And Commercial Furnaces And Water Heaters.
Best jb weld for radiator Buying guide
When shopping for JB Weld for radiator repair, consider the materials being joined and the temperature range of the repair. SteelStik is a steel-reinforced epoxy putty that can be used to repair radiators and other metal components, and can withstand temperatures up to 300°F (149°C). KwikWeld is a fast-setting version of JB Weld that is designed for general repairs, and can withstand temperatures up to 550°F (288°C). For extremely high temperatures, JB Weld ExtremeHeat is a metal-filled compound with a resistance of up to 2400°F (1316°C). Choose the right JB Weld product based on the materials being joined and the temperature range of the repair.