Solder without Flux- Without
a flux core, these solid wire and bar solders allow you to choose the flux that
works best with your application. Meet ASTM specifications. 60/40 Tin/Lead— The most popular dipping solder for electronic
applications. Its low melting range makes it ideal for delicate work. 50/50 Tin/Lead— General purpose solder handles standard
tinning and sheet metal work. 40/60 Tin/Lead— A good general purpose dipping solder. 30/70 Tin/Lead— Solder for machine and torch soldering.
