Hi there
I have also placed this message in the silver thread.
I'm wondering if anyone is able to help. The knowledge that I've seen on this forum is startling so I'm sure some experts on here might have some idea of what I have.
I've just started the very fascinating hobby of pouring gold and silver bars. I have done a number of silver bars so far but have noticed this white "staining" on the top of all. My bars. I'm melting the metal in graphite crucible so was thinking that it might be graphite dust that has settled on the top.
In order to try and get this staining off the bars I placed them in a rotary tumbler for 24 hours. It didn't make much difference and the staining is still there ( see 2 attached images).
Anyone know what this is, how I can get rid of it and how I can prevent or lessen it in my future pours?
Thanks so much for any insight.
TD.
I have also placed this message in the silver thread.
I'm wondering if anyone is able to help. The knowledge that I've seen on this forum is startling so I'm sure some experts on here might have some idea of what I have.
I've just started the very fascinating hobby of pouring gold and silver bars. I have done a number of silver bars so far but have noticed this white "staining" on the top of all. My bars. I'm melting the metal in graphite crucible so was thinking that it might be graphite dust that has settled on the top.
In order to try and get this staining off the bars I placed them in a rotary tumbler for 24 hours. It didn't make much difference and the staining is still there ( see 2 attached images).
Anyone know what this is, how I can get rid of it and how I can prevent or lessen it in my future pours?
Thanks so much for any insight.
TD.