In the solder category we stock: Uniweld low temperature and self-fluxing aluminum rod for joining and build-up of aluminum; Cadmium and Lead-free acid flux cored silver bearing solder, Jun 18, 2019 · Heat the metal. Use your torch or soldering iron to heat the metal object adjacent to the join, starting at the lower end of the workpiece. A direct flame on the repair area is likely to overheat the solder and flux. If using a torch, hold the torch tip at least 4 to 6 inches (10.2 to 15.2 cm) away from the parent metal.

Almost every do it yourself person has had to apply some solder in one form or another, and for plumbing or working with jewelry, silver solder is the medium of choice. On the other side of that task is removing the solder, whether for aesthetic reasons, if there has been a mistake made or for artistic purposes.