Bronze Clay Jeweller’s Light Yellow Bronze Prometheus Miscellaneous Contents

Description

Make your own bronze jewelry with Prometheus Bronze Clay!

Knowledge base – Bronze clay

Prometheus® Jeweller’s Light Yellow Bronze Clay is a clay-like material that, after firing in a kiln, turns into pure, solid bronze.
It is composed of micron-fine bronze powder, water and an organic binder.

The clay can be worked in a variety of ways:

• shaped by hand,

• rolled out into a sheet or cord,

• pressed into a mold,

• provided with structure or texture,

• or even turned on a potter’s wheel.

Prometheus® Jeweller’s Light Yellow Bronze Clay can be fired together with most
lab-produced gemstones (such as cubic zirconias), pre-controlled natural stones, glass beads, ceramics and porcelain.

During the firing process, the organic binder evaporates and burns off, leaving only solid bronze.
After firing, you can cast the workpiece:

• brushing,

• possibly pickling (to remove firescale),

• and polish to the desired sheen.

Applications

With PLY® you can realize unique creations such as:

• sieraden

• ornaments

• hollow objects

• statues and sculptures

• decorative works of art

Everything you make with Prometheus® Jeweller’s Light Yellow Bronze Clay is a work of art. Combine it with your imagination and let your hands do the work!

Baking process – two-step method (PLY®).

Step 1 – Combustion of the binder

1. Place the fully dried pieces on a stainless steel rack.

2. Turn on the oven cold (not preheated).

3. Increase the temperature to 500°C (932°F).

4. Baking time: 15 minutes.

5. Remove the pieces from the oven and place on a heat-resistant surface to cool.

💡 Purpose: To remove the organic binder to prepare the metal powder for sintering.

Step 2 – Sintering process (bronzing).

1. Apply a layer of about 3 cm of activated carbon to the bottom of a steel container.

2. Place the pieces in the container with at least 1.5 cm space between each piece.

3. Cover the pieces completely with activated carbon and seal the container tightly.

4. Place the container in a preheated oven at 780°C (1436°F).

5. Return the oven to the target temperature and bake for 1 hour.

6. After baking:

   • Option A: let the oven cool completely with the pieces in it, or

   • Option B: Carefully remove the container from the oven and let it cool on a heatproof surface until the pieces are cold enough to take out.

Post-processing

1. Brushing: remove loose residue or discoloration.

2. Pickling: use a pickle bath to remove any firescale.

3. Polishing: apply the desired finish – matte, satin or high gloss.

Summary of baking steps