Hello, I encourage you to go to this PMC webpage and look at page 5of
the PMC user’s guide: http://www.pmclay.com/resframes.html In
summary, if you are using regular PMC, remember that it will shrink
quite a bit, and creating the right size indentation for later
setting will be difficult to do. If your sapphires are lab grown,
you can simply set them in the PMC (following the website’s
guidelines), then fire. Very simple. Judy in Kansas, where temps are
heading into the 90’s all week!
Judy M. Willingham, R.S.
221 Call Hall Kansas State Univerisity
Manhattan KS 66506
(785) 532-1213 FAX (785) 532-5681