Let's just give some thought to the use of capping wax before this thread gets too far along. Remember that any moisture you press under the surface of melted alloy will turn to steam very quickly. So use some care when adding this trashy wax with bee parts and whatever else the girls might have drug into the hive. If it is hissing and popping, you do not want to stir things up but step back and look away, quickly! I have had one experience with "caps" and there was a lot of living stuff still in the mix since it was fresh. At that point I was not using it for flux, but trying to refine it to use the beeswax for mixing as a bullet lube. It was a "learning experience", but worth the time and effort. Just stressing that you do need to use some caution when using caps as a flux in melted alloy. Dusty