The two most commonly used types of lead-free solder are SnAgCu (tin-silver-copper, also called SAC) and SnCu (tin-copper). SnAgCu alloy with 3% silver and 0.5% copper (SAC305) was initially ...

In 2023 the ethnic militia that controls Wa state in the north-east, which is the source of most Burmese tin, suspended ...

The video does have a bit of theory on soldering chemistry and the difference between eutectic alloys and other tin-lead mixes, as well as a little about the proper use of silver-bearing solders.

During the soldering process, chemical reactions occur between the base metal and the solder to form intermetallic compounds. These compounds often have different physical and chemical properties that ...