I have some used roofing lead that a buddy of mine has been saving from jobs that he did over the summer. When I was melting it down into ingots i noticed that the surface had a golden hue to it. I fluxed it twice with paraffin wax and after skimming off the top the hue came back forming a layer of slag. I fluxed it again with the same results.
I am assuming that this hue is coming from the roofing tar but i don't know. So how do i stop this from happening or should i even worry about it?
I am assuming that this hue is coming from the roofing tar but i don't know. So how do i stop this from happening or should i even worry about it?