Review on 🔧 Fix Radiators and Plastic with J-B Weld 2120 Repair Kit - The Ultimate Solution for Leaks and Cracks by Matt Charlton

There is one thing to keep in mind when mixing ingredients and using them as intended. The packaging gets very hot after a few minutes. I used mine to fix a radiator and luckily it only took a little while. After holding the bag for a minute or two, I noticed that it was beginning to heat up and didn't attach much importance to it. Another minute and she reached a searing temperature. So mix and use up quickly. Radiator welding works, but apply quickly.