Jewelry soldering; Choosing the right solder and how to use it. Before we begin, we must first understand what exactly we mean by “soldering”. Many people confuse electronics soldering with Jewellery soldering and think that the two are the same - they are not. Electrical or electronics soldering uses very low-temperature solder and a soldering iron. Originally, electrical solder contained lead, but modern solders contain other alloys such as tin and copper, designed to melt at low...