I have a question regarding graphite crucibles. I bought a Kerr
Electro-Melt to melt the metal for my casting projects. It uses
graphite crucibles and I’m not sure if I am supposed to be using flux
or not. Am I supposed to flux the metal when I am melting it, or is
it OK to use graphite crucibles without it? If I need flux, do I coat
the whole crucible in flux first, or do I just sprinkle some in on
top of the metal right before I cast? Any help from anyone with
experience using the same type of Electro-Melt would be appreciated.