I still get blank looks sometimes from people who think that different silver clays cannot be mixed. From a chemistry point of view, all the silver clays are totally compatible, with the caveat of potential shrinkage mismatch. I routinely mix Art Clay syringe with PMC clay. The very first piece I made in sterling clay had a bit of fine silver syringe work added. Yesterday I loaded up the kiln with sterling and threw in a couple of pieces that have been on my bench for months. They were in an area of my bench that I've come to reserve for sterling clay, so I slapped sterling hallmarks on the back and fired away.
|Fine silver clay with sterling clay applied|
|Sterling clay components (and a couple of fine silver)|
fresh from the kiln
The sterling comes out of the carbon with a light golden color, which cleans right off. The fine silver components come out bright white. Once it's all polished and patinated, the difference is less obvious.