- You'll need a stainless steel mesh if using a stove.
- Find a heat brick if using a gas torch.
- A kiln is recommended for large or thick items.
- To estimate the temperature you can achieve on your gas stove, heat a small, thin aluminum pan on high and point an infrared thermometer at the surface once it is fully heated.
- You can purchase this in lump form for sculpting, as a softer paste extruded from a syringe for finer detail work, or even in "paper" form for origami designs.
- The silver clay will shrink during firing, so make the jewelry slightly on the large side. Check the label for details, as shrinking can vary from 8% to 30% between products.
- You can push a metal stamp or any metal object into the clay to form a surface design.
Dry and sand the clay. Allow the silver clay to air dry overnight, or dry it thoroughly using a hairdryer. Smooth the surface with fine sandpaper.Fire the clay with a torch. If using a torch, place the clay on a heat brick, and the brick on a heat-safe surface. Hold the torch flame ¾ inch (2 cm) from the clay and heat until it catches fire, burns out, glows red, then reaches an even glow. Continue to heat for at least five minutes, or however long your clay instructions recommend.
- Look away periodically to relieve your eyes.
- Place a piece of stainless steel mesh on a stove top burner. Turn the burner on to its highest setting.
- Observe the mesh to locate the hottest area on it. This area will glow. Turn the burner off and allow the mesh to return to it's normal color.
- Place the silver onto the hottest area of the mesh and turn the burner back on, this time to a low flame. Use tweezers or flat, non-serrated pliers to handle the silver.
- After the clay has burned off completely, turn up the burner and heat until the silver glows red. Turn it down again if it glows orange.
- Continue heating for ten minutes, then turn off the heat.
- The optimal firing temperature for most silver clay is 1650ºF (900ºC), held for 2 hours, but the jewelry might come out strong enough even at temperatures as low as 1200ºF (650ºC).
- Never quench jewelry with embedded glass, precious stones, or other additions.
Polish the surface (optional). The silver will look white and a little dull after firing. If you want the shiny silver appearance you may be used to, brush the surface with a brass or steel wire brush, or polish with a buffing machine and jeweler's rouge.