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Cold Casting Powders

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  1. Aluminum Powder

    Aluminum Powder

    Starting at: $9.95

    Aluminum Powder - 425 mesh (35 micron) uncoated spherical particles for cold casting creates the look of pewter. Learn More
  2. Brass Powder  325 mesh

    Brass Powder 325 mesh

    Starting at: $19.95

    Pure brass powder. It is a fine grade of 325 mesh the correct fineness for cold casting. Learn More
  3. Bronze Powder 325-mesh

    Bronze Powder 325-mesh

    Starting at: $19.95

    Pure bronze powder. It is a fine grade of 325 mesh the correct fineness for cold casting. Learn More
  4. Copper Powder 325-mesh

    Copper Powder 325-mesh

    Starting at: $17.95

    Pure copper powder. It is a fine grade of 325 mesh the correct fineness for cold casting. Learn More
  5. Iron Powder for Cold Casting

    Iron Powder

    Starting at: $6.95

    For cold casting atomized iron (Fe3O4) Learn More
  6. Lime Stone Powder 325-mesh

    Lime Stone Powder 325-mesh

    Starting at: $7.95

    Pure limestone powder. It is a fine grade of 325 mesh the correct fineness for cold casting. Learn More
  7. Marble-Powder-325-mesh

    Marble Powder 325-mesh

    Starting at: $7.95

    When combined with CastRite, KastEZ or AquaClear resin in a 1/3 - 2/3rds ratio our marble powder provides a simulated marble finish to your castings Learn More
  8. Pecan Shell Powder

    Pecan Shell Powder

    Starting at: $7.99

    Pecan Shell Powder for cold casting, imitating wood and as a urethane filler. combine with AquaClear resin for a simulated mahogany or KastEZ resin for a simulated maple or oak finish. Learn More
  9. Porcelain Powder 325-mesh

    Porcelain Powder 325-mesh

    Starting at: $7.95

    Pure porcelain powder. It is a fine grade of 325 mesh the correct fineness for cold casting. Learn More
  10. I-Glo Photo-Luminescent Pigments

    I-Glo Photo-Luminescent Pigments

    Starting at: $29.95

    I-Glo photo-luminescent pigments are the latest technology in creating stunning artwork effects.

    Learn More

Cold Casting

"Cold Casting" is a simple technique using fine metal, stone or wood powder (usually -325 mesh) to create objects that duplicate the look and feel of "hot" foundry castings, without the expense and danger of working with molten materials in a foundry. Cold casting bronze, copper and tin are the most popular metals used for this purpose. However, cold casting s can also be done using porcelain, limestone, wood and marble powders. These are popular for a stone or ceramic finishes, with wood flour being used for a wood effect for furniture and moldings as well as antique repairs.

The cold casting powders are added to a resin binder such as KastEZ or AquaClear resins. Small objects are cold cast and cured in a suitable mold normally created using two-part RTV silicone rubber, but other mold materials can also be used. The mix ratio is usually 1 part cold casting powder to 2 parts binder. To conserve these cold casting powders when casting larger pieces, the mold surface may be dusted, slushed, brushed, spread or sprayed to create a thin coating. The mold can then be back filled with resin or fiberglass, iron or steel shot, sand or calcium carbonate to increase weight. After curing, the surface of the cold cast must be abraded or burnished with "0000" steel wool to remove the microscopic binder on the surface exposing the pure filler powder beneath.

The object will now have the authentic look and feel or true hot metal, stone or wood. Because the surface is true metal, it will naturally oxidize unless sealed, or it can be artificially oxidized using a variety of patina acids to provide a range of artistic effects.

Wide Choices of Cold Casting Powders

This cold casting product category offers a diverse selection of fine metal, stone and wood powders for cold casting. We offer bronze, copper, brass and tin for metal casting. Use tin to achieve the look of pewter, aged iron, nickel silver, or stainless steel. We also offer marble powder and limestone to reproduce stone statuary as well as porcelain and pecan shell powder to create simulated wooden carvings, moldings, cornices and appliques as well as bas-reliefs.

Cold Casting Instructions

You can download a simple Cold Casting Instruction PDF sheet here. For an excellent set of instructions on cold casting to duplicate antique wooden knobs, metal and glass hardware you can download a PDF cold casting instruction sheet here. You will be pleasantly surprised about how easy cold casting is to create.