Thank you for sharing your knowledge with me, Pam! Once I make the bezel wire, I’ll be using part of it to complete a sample project from a book that focuses on soldering. It will be the first cabochon I’ve ever bezeled and soldered to another piece of metal. I expect that this first one will turn out pretty “interesting” looking.
A copper bezel is almost as easy to fold over as fine silver; I use it frequently. Tinned copper ribbon is used to connect solar cells together. I got 5 pounds of untinned scrap 26ga 3/16” ribbon from work that I donated to the NJ visual arts center.
This being said, it would be difficult to buy less than five pounds of untinned PV ribbon.
About 2012 or 13, I bought copper bezel wire from Rio Grande. I think it came in 1 or 2 pound increments. It’s in a box in the garage until my joint surgeries are all done.
Aggie
Your alloy was exposed to too much oxygen, you’ll need to flux as you heat next time. the easiest flux to find in Africa might be borax…it’s used for laundry and already in powder form. Also, try to use a neutral flame as opposed to an oxidizing flame
a few minutes in pickling bath should do it. Careful fragile stones; diamonds, generally O.K.
Does anyone have a beverly shears for sale? Close to Chicago?
30% LR category Sulfuric Acid (98% chemically pure) 70% Water.
pickling in this by heating to 50% for few seconds will clean the diamond.
Diamonds are generally refined and cleaned in mixtures containing boiling sulfuric acid.
Regards.
Dharmesh
hello i am new to this site and i will like to learn more
Hello,
Welcome to the forum. The search feature is a great way to discover information about many topics thru past posts. pick a topic and search away…
julie
thanks i would take a look
Im reading that ammonia is a go to cleaner for diamonds.
Can you share the link to the sulfuric acid that’s is good for the diamond thank you
This ring is art! Amazingly beautiful.
I’m in love with this ring! It is beautiful. I keep looking at it.
Which one? I can’t see an image. Is it on my page here or on our web site?
The one from 2017.
Jus press your avatar in her reply to you.
It looks like a big emerald.
I think they are referring to your emerald ring.
Hello all, I just started my jewellery manufacturing and I’m having a huge issue I’m not able to solve I hope you can help me out! Here is a list of my equipment;
Silicone: Castaldo Super High Strength Yellow 180*
Injector: Masterix MJ-01 with C13 Clamp
Wax: Masterix Universal Blue Injection Wax (injected at 75 degrees)
I’m making silicone moulds for a chunky silver ring of mine (11 gram solid ring) with a 4mm runner/sprue but every time I fill the mould with wax in the injector it flows out of the injection hole leaving the main runner as a pipe which explodes when I pull a vacuum during the investment phase.
I’ve seen thick runners like mine in other mould on videos by Masterix with the same wax and machine and I cannot figure out why.
One thing I’ve noticed is that the runners are always sloping downward towards the injection hole, can that be the main reason???
I have also attached a diagram of side view of my mould with my 4 mm runner
Screenshot 2025-11-06 at 8.31.27 pm1818×1118 80.7 KB
Is there a better way to make this so I can retain my runner size but prevent the backflow of wax from the injection hole??
Have you tried a different arrangement or placing your main sprue? Just by looking at the diagram of what your doing is making pressure that is causing your problem. Maybe others have another take on it just my thoughts on it and good luck…~~*STV