Chununga Tree

All versions of metal clay can be kiln fired for 2 hours at 1650degF/900degC although there are shorter and lower firing schedules for Art Clay 650 series, PMC+ and PMC3.  Please follow the firing schedule on each pack.

The ideal tool for firing is an electric programmable kiln. These kilns combine the benefits of accurate control with freedom since they do not require monitoring. Several kilns have been developed just for metal clay and can be purchased through various jewellery supply companies.  Please see our range of Paragon kilns which we have personally used for years and can highly recommend!

Next best is a manual kiln with an accurate pyrometer. As the kiln approaches the desired temperature, regulate the heat by adjusting the knob or cracking the door open. Kilns appropriate for this method include enamelling kilns, burnout ovens, test (glaze) kilns, and many kilns used to fuse or anneal glass. Large ceramic kilns are not recommended because the internal temperature varies throughout the chamber although we do know of artists who have used them successfully with the low firing clays,  making sure that they fire for longer.

Art Clay 650, PMC+ and PMC3  have been created to have relatively short firing times. These open the possibility of alternate firing techniques using a butane torch.  Torch firing is only recommended for small pieces as it is very difficult to torch fire evenly a large piece and this usually leaves weak points in your finished piece.

Firing Surfaces: To make it easy to set objects into the kiln and remove them after firing, place your work on shelves or trays. These can be soldering blocks, bisque tiles (ceramic supply), most floor tiles, terracotta saucers, and slabs of kiln bricks. If in doubt, run a test firing. All these materials will eventually break from use, but their lifespan can be extended by reducing exposure to thermal shock. When a shelf has been unloaded it should be put back in the warm kiln to cool slowly. Shelf kits are included in the price of all our kilns.

These materials can be stacked using pieces of soldering block as supports between layers. Shelf materials are brittle so use common sense in providing support and avoiding stressful situations.