To all the scrap metal casters,
Here is another big secret for all. When melting scrap metal instead
of using a pinch of flux when the metal is molten, use a pinch of
table salt. It will help burn off the extra zinc used in the various
alloys. I have cast junk metal this way and it does work.
Jewelry Dept.
Minneapolis Community & Technical College
www.mctc.mnscu.edu/acad/academic/programs/tech/jewelman/index.html