Bronze Metal Clay Jewelry

September 20, 2021

Click to see this Art Clay Silver necklace project.Metal clays consist of powdered real metal (silver, gold, copper, or bronze) mixed with organic binders and water to create a soft clay that can be manipulated by hand as well as with shaping tools and molds. Once the clay is manipulated into the desired design, it is fired. During firing, the binders burn away and the particles of metal fuse together, creating a solid metal object. This process of turning powders into solids is called sintering.

Metal clay created a revolution in jewelry arts and crafts production when it was invented in Japan in 1990. For the first time, actual metal could be manipulated like pottery clay! This direct design process has opened up metalworking to many more people.

Click to see this bronze clay earrings project.Basic pottery skills are all you need to get started. For more adventurous metalworkers, traditional metalworking skills can be employed on pieces after they are fired.

Some metal clays can be fired with a gas stove or butane torch, while others require the use of a kiln. For details on firing options, see below.Recycling icon To shop for firing supplies, see our full line of torches, kilns & firing supplies.

  • When fired at 1650° for two hours, this is the strongest fine silver clay available. Well suited for items that will be worn often.
  • 10-18% shrinkage. Offers a smooth, fine composition that's easy to work with and manipulate.
  • Can be torch fired or kiln fired.
  • Can be fired with sterling findings and gemstones without them being heat damaged.
  • Firing temperatures: 1650°F (900°C) for two hours to achieve maximum hardness & durability; or 1110°F (600°C) for 45 minutes; or 1200°F (650°C) for 20 min; or 1290°F (700°C) for 10 min.


  • 8-15% shrinkage (average of 12% shrinkage). Shrinks less and has a stronger molecular bond than original formula PMC.
  • Can be torch fired or kiln fired.
  • Can be fired with sterling silver findings.
  • Firing temperature: 1650°F (899°C) for two hours to achieve maximum hardness and durability; or 1470°F (800°C) for 30 minutes; or 1560°F (850°C) for 20 minutes; or 1650°F (900°C) for 10 minutes.
Click to shop our container with sponge. Click to shop our metal clay tool kits. Click to shop cork clay. PMC3 Precious Metal Clay
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