Hi everyone. I am working on a project that involves making a ring out of two clay types, sterling silver and fine silver. I wanted to know how to combine them without having the problems of uneven shrinkage. Additionally, I wanted to fire them together.
To solve the problem of shrinkage I fired them both separately. The top (PMC3) was fired at 1110 F for 1 hour. I fired it at a lower temperature to protect the Garnets.
The ring shank is made from PMC Sterling Silver metal clay. I fired it using the two stage system recommended by Mitsubishi.
I used PMC3 syringe and oil slip to hold them together. I had several questions about this configuarion.
- Do I fire it using the two stage system or do I fire it using the PMC3 system.
- If I fired it using the PMC3 system, would it be a good join?
- Will the sterling oxidize and not stick to the newly added clay holding them together.
- Or, if I fire using the two stage system, I must lower the temperature to 1110 F so as not to harm the stones.