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COPPRclay 200 grams


COPPRclay 200 grams

COPPRclay™ metal clay provides an incredible artistic range. And, because it is copper, it is also so cheap that you can use it for large pieces—even sculptures—very affordably! Like its precious-metal counterparts, COPPRclay can be pinched, rolled, sculpted, cut or manipulated any way you like. Then fire it, and the binder burns away, leaving a solid, pure copper object. Create jewelry, jewelry components, or custom-crafted specialized tools. You can even practice new techniques or design ideas using COPPRclay, then apply your new skills to precious metals. And because COPPRclay is pure copper, it’s great for artists who enjoy applying enamels .

Package includes 200g of COPPRclay™ metal clay.


  • Size : 200 grams
  • Brand : COPPRclay
  • Form : Clay
  • Shrinkage : 20%
  • Country of origin : United States

Please Note:

• If the clay becomes a bit too dry as you're working, spray a small amount of distilled water on the clay to help improve its pliability.
• COPPRclay™ returns the best results when fired in a firing pan, surrounded by coconut shell–based carbon, inside a kiln. Firing pan and coconut shell–based activated carbon available separately. See the instruction sheet with your COPPRclay for details on all firing methods.
• If you plan to enamel the piece, please follow the recommended firing schedule listed in the instructions.

  • INFO
  • COPPRclay 200-gram package

    • COPPRclay guide.

      Welcome to COPPRclay™!

      COPPRclay™ is easily sculpted, molded, carved and formed,

      and becomes solid copper when fired. Your imagination and

      just a few simple tools will allow you to create solid copper

      pieces, from jewelry to sculptures! And because COPPRclay

      is pure copper, it’s great for those artists who enjoy applying

      enamels (note the required firing requirements on back).

      Working with COPPRclay™

      COPPRclay™ is just that: a clay. Like clay, it’s highly workable

      but it also dries quickly. You’ll notice the clay stiffening and

      cracking when it begins to dry. Some tips to keep in mind:

      • Keep COPPRclay™ refrigerated until you’re ready to use

      it and in between sessions.

      • Rub a dab of olive oil on your hands before you begin

      working with the clay.

      • While working the clay, refresh it periodically with a

      small amount of water using a spray bottle or brush.

      • Wrap pieces that you are not currently working on

      in plastic and place to the side.

      • Avoid using tools that absorb water.

      • When not in use, keep the clay tightly wrapped in plastic

      and place the wrapped piece in a sealed plastic bag for

      added protection. Store all unopened packages (as well

      as opened packages) of COPPRclay™ in a refrigerator

      when not in use.

      Making Slip

      Slip will quickly become one of your favorite tools for

      working with COPPRclay™, and it’s easy to make. Simply mix

      tiny pieces of clay (filings, small dried or wet pieces, etc.) with

      water (we recommend distilled water for a longer shelf-life)

      until you reach a toothpaste consistency. Keep your slip

      stored in a sealed container. Note: Slip will last for about

      one week, so make only enough for your immediate need.

      Drying the Clay

      Once you’ve finished your piece, you will need to dry the clay

      before firing it. Gently place the piece on a warming surface

      such as a coffee mug warmer or on the top of a kiln (be

      careful to keep pieces away from the kiln’s vents); an

      inexpensive vegetable dehydrator works well, too. Once

      dry, you’ll notice the clay is leather hard, making it very

      easy to add finishing touches such as filing, drilling, sanding

      and carving. Once COPPRclay is fired, it’s much more difficult

      to finish, so take advantage of this pre-fired stage to do as

      much of your detailed finishing work as possible.


      To reduce oxidation, the piece(s) must be embedded in

      coconut shell–based activated carbon (Rio #703-205)

      during firing. Important: Some coal-based carbons may

      not fire COPPRclay properly; we recommend using coconut

      shell–based activated carbon.

      Firing COPPRclay™ is a two-step process that uses low

      heat to vaporize the binder, then high heat to sinter the alloy.

      1) Spread 1" of coconut shell–based activated carbon

      granules on the bottom of a stainless steel firing

      container .

      2) Place the piece on top of the layer; if firing two or more

      pieces, leave at least 1/2" between pieces, more if the

      pieces are large.

      3) Pour more activated carbon granules on top of the pieces

      until the container is filled 1" from the top, making sure 

      there is a 1/2" layer of granules on top of the pieces.

      Again, if you are firing many pieces in layers, make sure

      there is at least 1/2" of space between the vertical layers

      as well. Note: Do not fire more than 100 grams of clay at

      once; overloading may cause poor sintering.

      4) Put the stainless steel lid on the firing container and

      place it in the kiln on stilts to allow good heat circulation.

      Note: Front-loading kilns are cooler in the front near the

      door, so the front of your firing container will be cooler

      than the other sides. Compensate for this by placing the

      pieces closer to the sides and back of the firing container,

      making sure you leave at least 1" of space between the

      pieces and the front of the firing pan. If you have a

      top-loading kiln, there’s no need to adjust.

      For COPPRclay™ pieces that will not be enamelled:

      Regardless of thickness (embedded in coconut shell–based

      activated carbon): Ramp at full speed to 1700°F–1800°F

      (927°C–982°C) and hold for 3 hours (total firing time,

      including ramp-time, will be about 4 hours). Most firings

      perform well at 1700°F. However, if you discover that your

      pieces are not sintering properly, try firing them at 1800°F.

      Please Note: Blistering may occur at 1800°F; if this occurs,

      slightly decrease the firing temperature.

      For COPPRclay™ pieces that will be enamelled:

      Follow the two-phase firing schedule below if you plan

      to enamel your piece.

      Phase 1 (open-shelf fire)

      For pieces 3mm thick or less: Place the piece directly on the

      firing shelf. Ramp at 500°F/hour (278°C/hour) then hold at

      560°F (293°C) for 15 minutes.

      For pieces thicker than 3mm: Place the piece directly on

      the firing shelf. Ramp at 200°F/hour (93°C/hour) then hold

      at 560°F (293°C) for 15 minutes.

      Phase 2 (sintering)

      Regardless of thickness: Embed the piece in coconut

      shell–based activated carbon inside a firing pan. Ramp

      at full speed to 1750°F (954°C) and hold for 31/2 hours.

      Allow the piece to cool naturally inside the kiln.


      Once fired, the COPPRclay™ piece is a solid piece of

      metal. As with other metals, it can be sawn, drilled,

      sanded, patinaed or soldered using traditional jewelry

      tools and materials.  Keep in mind that many

      finishing techniques will be easier to perform at

      the dried, pre-fired stage.


      The binder in COPPRclay™ is non-toxic, and no toxic fumes

      will be present during firing. Though rare, it is possible for

      some individuals to experience

      some sensitivity to COPPRclay™.

      We recommend wearing a dust

      mask while working with the

      activated carbon.