In bronze sculpture, a technique for joining separately cast parts, inlays, overlays, repairs, or for filling casting defects, by adding a metal with a lower melting temperature than the primary cast, as opposed to brazing. As a rule of thumb, soldering is white (alloys of silver, tin, lead, etc.) whereas brazing is yellow (copper alloys). Two types of soldering include: soft soldering (low melting temperature alloys such as a combination of lead, tin, and/or bismuth) and hard soldering (higher melting temperature silver alloys).
Note: The use of hard solder (a silver alloy) is sometimes referred to as brazing, but to avoid confusion, we suggest it should be referred to as soldering.
