Originally Posted by mattathayde
only easy flow is down to the 50%, and there is very little use for it, hard solder is 76/21/3 (silver,copper,zinc), the lower temp silver solders are really yellow and dont match well. but ya IT (eutectic) solder is about 80/16/4 and has a melting of 1490*f and the only time that is used is for enameling but realistically unless it is really delicate you might as well tig weld it
There are various silver solders with Ag %s around or below 50 but that's beyond the point. I made that statement to give an idea of how much silver is actually in a low temp silver solder.