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What is PMC (Precious Metal Clay)?

by: ab169( 2835Feedback score is 1000 to 4,999) Top 5000 Reviewer
20 out of 21 people found this guide helpful.
Guide viewed: 2649 times Tags: PMC | Precious Metal Clay | Silver Clay | Metal Clay | Jewelry Making


PMC is a revolutionary material - its is a mixture of pure Silver ( or Gold ) in its finest powder form, H2O and a non-toxic binder that has a clay, putty-like consistency.

When fired to the right temperature, the H2O and binder singe and burn-off as the metal fuses together. Leaving your creation in 99.9% pure silver or gold with the original shape, textures and details intact (slight shrinkage will occur). Until now the art and timely process of metal casting can entirely be skipped. You can create pure silver or gold jewelry without the limitations of traditional silver and gold jewelry making. This process from soft clay to hard metal is so magical that it is called Silver Alchemy.


The Product - Silver PMC:

  • PMC Original-Easy to use, enables fine detail to be added as it shrinks by 25-30% after firing. Available in a lump form.
  • PMC+-This is the most commonly used PMC. It has a minimal shrinkage of 10% when fired. Available in either a lump form, syringe, paste or paper.
  • PMC 3-The lower temperature level needed to fire PMC3 makes it ideal for stone setting and for use with more traditional metals. You can fire it with stones that can withstand the lower heat level that Standard and PMC+ cannot be fired in. Available in a lump form, syringe / paste or paper.

And Gold PMC:

  • Gold PMC
    is available in 24k and can be used on its own or in conjunction with the silver PMC to form an 18k gold or used to gold plate the silver.


Modeling PMC

This clay-like material is easy to sclupt into jewelry, charms, pendants, etc. Try the following techniques:

  • Carve it, pinch it, cut it, twist it or roll it by hand.
  • Carve and engrave PMC with a wide range of tools.
  • Extruded through syringes, pasta machines and bakers tubes.
  • Use PMC in rubber moulds.
  • Form it around a core of paper-mâché, styrofoam or wax to create hollow shapes.
  • Emboss it with Leaves, bark, shell, carvings and other materials.
  • Decorate it with glass or enamels.
  • Combined PMC with other materials including temperature-tolerant gemstones, ceramic beads and shards, silver and gold findings. Silver and Gold PMC can be combined with stunning effect.
  • Re-fired several times to repair surfaces and joints or to add new pieces and materials.
  • Polish it, tumble it, oxidize it, enamel it, plate it, etc.
  • And many new techniques and methods yet to be discovered


Firing PMC

To turn the PMC into pure silver or gold, the binder and water must be singed away entirely. This is done either by placing the PMC into a kiln, with temperatures ranging from 800 - 10000c. Or depending on the type of PMC, some may simply be fired using a Butane gas torch.


Finishing PMC

After PMC is fired and silver has fused together, the end product looks white and chalky. This item needs to be finished. Usually you start by brushing the item with a fine wire brush and then with a finer brush cloth or paper. You can add darkened details by using liver of sulfur on the item which will add a black color to the details, cracks and crevaces. Once it is in it's solid metal state, the silver can be hallmarked as .999. and the gold as 18 or 24k

For great deals on Precious Metal Clay, shop for PMC on eBay.


Guide ID: 10000000000011496Guide created: 10/05/05 (updated 08/13/08)

 
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