Hi. I just started experimenting with metal clay. My test batches came out of the kiln completely black. I tried pickling a copper piece with Sparex (I think #2). All the black went away and left a perfectly smooth reddish orange color, but my piece didn't look metallic or shiny at all, more like a dried clay. As it continued to dry, it got all splotchy with strange ugly colors. I'm so confused. How do I get my copper to look like copper? Can anybody help?

Hello all,

Talking about galvanized steel again, coat-hanger width/gauge, - any ideas on how to clean it up after it has been worked on (soldered) - Looking to remove oxidation and generally clean the metal.