My normal “silver” crucible is out of commission right now, so I used a brand new graphite clay Amazon special. I glassed it with borax like I usually do, but noticed that it’s not melting as quickly as usual.
Last time I opened the propane foundry, I was hoping that it was just excess flux that made it look lumpy and that it was completely melted below.
I noticed what looked like a purple plasma in the bottom of the crucible and something seemed to be boiling quite violently.
Now I know it’s possible to lose silver to vapor when using an Oxy-acetylene torch, but I’m no where near those temps with this propane foundry.
Does anyone have any idea what this could be? I tried to take a photo, but was unsuccessful.
Either way, once this finally melts, I guess this is going into the silver cell that’s pregnant with copper as I don’t want to foul up any new electrolyte!
Last time I opened the propane foundry, I was hoping that it was just excess flux that made it look lumpy and that it was completely melted below.
I noticed what looked like a purple plasma in the bottom of the crucible and something seemed to be boiling quite violently.
Now I know it’s possible to lose silver to vapor when using an Oxy-acetylene torch, but I’m no where near those temps with this propane foundry.
Does anyone have any idea what this could be? I tried to take a photo, but was unsuccessful.
Either way, once this finally melts, I guess this is going into the silver cell that’s pregnant with copper as I don’t want to foul up any new electrolyte!