Jeff Harding wrote: > > Andy > > I wonder at what temps certain metals oxidize? Besides the > expansion/contraction rates, perhaps steel/iron oxidizes to quickly to > get a good bond. Wonder what a kiln in a vacuum might do? > Dunno, but I could find out. I actually have some frit in one of my machinist boxes, I think. It was from some gold pins I did for Amnesty International in 95. Unfortunately, it's black :(