

It's as easy as 1-2-3:
Precious Metal Clay is available in three different versions; PMC, PMC+ and PMC3.
PMC+ and PMC3 are sold in lump form, as slip/paste (liquid clay) and sheet. Each type has its own unique characteristics.
The original PMC is easy to work with, dries slower and has a longer working time. It has a relatively high shrinkage rate (28%) that allows for wonderful detail. Must be fired at 1650 degrees for 2 hours.
PMC+ fires very quickly (1650 degrees for 10 minutes). It is denser and makes a more durable material. It has a shrinkage rate of approximately 12-14%. It can be fired at three different temperatures (1470, 1560 and 1650°F). The lower temperatures allow for adding certain stones and enameling. May also be fired with a torch for 7-10 minutes or with a hot pot.
PMC3 has minimal shrinkage, is the strongest form of PMC and is the most dense. It's the best form to use for rings and for making repairs. It fires at even lower temperature (1110, 1200, 1290°F as well as 1650°F). This allows for adding dichroic glass. PMC3 can be torch fired for 2 minutes.
Not everyone will opt for all three versions. You may find a preference and stick with it or try different materials depending on the nature of the piece you are working on.
All three versions yield 100% silver! PMC may be hallmarked and will assay as .999 pure







