Hello everyone, sorry for the long delay to come back!
@ silversaddle1 : What do you mean by clips, what would be the difference with a scrap gold finger?
I cut these out of green boards which have on the side these "fingers" plated areas. I'll send attached an example photo of the original boards i cut it out from.
@ ben4 : These could be technical boards, also i've not yet had confirmation on that. The supplier was industrial type. I'll update you when i know more.
@ Claudie : these come from scrap boards that I've collected. Don't know the origin of the boards yet, but it might be a screen frame board for the shape, or some specialist industrial boards. I had never seen boards like that before. Maybe people on the forum will recognise it from the photo i'm sending.
I cut the gold plated edge away with a "guillotine" tool, trying to leave the mininum possible green board (in most cases i manage to leave it under 1 or 2mm green).
@ macfixer01 : the plating looks very homogenous on the eye, and thick, when i tried to pull it away with a knife from a test piece, it detaches in one piece of resistant and reasonably thick golded foil. To compare that foil is much stronger than an alu foil piece. I had seen low quality plating before and it went out in powder, so this looks like good / very good quality. Maybe i could update a clear photo of that too tomorrow. If i knew more about the original use of the boards we'd be able to know more i'm sure.
@ squarecoinman : You complained that i didn't come back earlier, but it was sleeping time then in Europe, i'm doing my best to answer all the questions on ebay and from emails as well. For the yield, what do you base it on? You refined similar material before?
And I'm looking to sell it at a fair price (both for me and the buyer(s)) or get it refined with someone reliable. I'd have sent all of it to Umicore if they hadn't a higher minimum quantity than what i have.
@ glondor : I live in France, no idea what the product you got from someone in Toronto is or who these people are. This is not related. Do you have photos of the material which yielded so little?
Thanks everyone! I'll try to answer faster this time!
Cheers,
Samuel