Solder an Aluminum Radiator in the Vertical Position

This clip is especially for race car owners, radiator shops, and 4×4’ers. It demonstrates a radiator being repaired from a vertical angle. If you can get to the damaged area with a torch you can fix it without removing it from the car.



  • Notice the technique: As soon as the rod began to flow, the heat is removed very quickly to avoid overheating the base metal.
  • Always keep the flux bottle as close as possible to the repair area, because every time you move your torch away, the aluminum drops approximately 100 degrees per second.


NotePlease observe all AWS Safety & Health Guidelines when using Muggy Weld products.