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Prometheus Bronze Metal Clay

15 products

Please note all prices listed are based on cash prices and are exclusive of VAT. Prices for precious metal products are an estimate only and can vary slightly depending upon the metal price, the actual weight and the cutting tolerances which we are able to achieve. Bullion prices are based on 10gm.

What Is Prometheus Bronze Metal Clay?

Prometheus Bronze Clay is a specialist metal clay made from fine bronze particles blended with an organic binder and water. When shaped and fired, the binder burns away, leaving solid bronze metal.

Key features:

  • Produces genuine bronze metal after firing
  • Suitable for detailed textures and sculptural forms
  • Strong and durable once sintered
  • Available in multiple bronze shades
  • Options for both torch and kiln firing

Prometheus is known for its consistency, making it a trusted choice for professional jewellers and hobbyists alike.

Torch-Fired vs Kiln-Fired Bronze Clay

Prometheus offers different firing options depending on your equipment and project needs.

Torch-Fired Bronze Clay

  • Ideal for smaller pieces
  • Accessible for beginners
  • Requires a handheld butane torch
  • Faster firing process

Kiln-Fired Bronze Clay

  • Suitable for larger or more complex designs
  • Offers greater control over firing schedules
  • Produces maximum strength and density
  • Ideal for batch production

If you regularly create larger components or intricate textures, kiln-firing provides more consistent results.

Available Bronze Colours & Finishes

Prometheus Bronze Clay is available in a variety of warm metallic tones, allowing you to expand your design possibilities.

Depending on the specific clay type, you can achieve:

  • Classic warm bronze
  • Rich red bronze hues
  • Deeper, antique-style tones
  • Polished high-shine finishes
  • Satin or patinated surfaces

After firing, pieces can be polished, burnished, patinated or textured further to enhance the final look.

How to Use Prometheus Bronze Clay

  1. Condition the clay by kneading lightly.
  2. Shape using moulds, hand-forming or texturing tools.
  3. Allow the piece to dry completely.
  4. Refine and sand before firing.
  5. Fire according to the manufacturer’s instructions (torch or kiln).
  6. Finish by polishing, tumbling or applying patina.

Always follow the specific firing schedule provided for your chosen clay to ensure optimal strength and colour.

Why Choose Prometheus Bronze Clay?

Jewellers choose Prometheus for:

  • Consistent shrinkage rates
  • Reliable firing performance
  • Strong finished pieces
  • Excellent surface detail
  • Versatility across design styles

Whether you’re experimenting with metal clay for the first time or adding bronze tones to your existing collections, Prometheus provides dependable results.

Tools & Accessories for Metal Clay

To get the best results from your bronze clay, consider pairing it with:

  • Texture sheets
  • Silicone moulds
  • Clay rollers and spacers
  • Fine sanding tools
  • Firing pans and carbon
  • Polishing and finishing compounds

Using the right tools ensures clean detail, smooth surfaces and professional results.

Frequently Asked Questions About Prometheus Bronze Clay

Can Prometheus Bronze Clay be torch fired?

Some varieties can be torch fired, but always check the product specification before firing.

How much does bronze clay shrink?

Shrinkage varies by product but typically ranges between 10–15%. Refer to the specific clay instructions for exact figures.

Is bronze metal clay suitable for beginners?

Yes, particularly torch-fired options. However, kiln firing offers more consistent results for larger projects.

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© 2026 Cookson Precious Metals Ltd. VAT Registration No. GB161 8062 21. Registered in England no. 2775187. Registered Office: 59-83 Vittoria Street, Birmingham, B1 3NZ
Tel: 0345 100 1122 or 0121 200 2120 Fax: 0121 212 6456