Copper Clay Firing Schedule

Fire on an open shelf no carbon ramp speed 500 temp 560 hold 15 min.

Copper clay firing schedule.

The firing schedule is the set of pre determined stages the kiln moves through from the time it is turned on to the time it has either turned off or has cooled enough to unload. Always fire copper components first to copper firing schedule. Each clay for your own kiln. I do a two phase firing.

This initial firing burns out all the binders which seems to improve the sintering in the second phase. The two metals do not sinter together. Fire as a part of a 2 fire schedule. To fire art clay copper with a butane torch.

Fire in activated coconut carbon. It is a incredibly reliable clay and the clay we recommend whole heartedly to anyone new to base metal clay. Fire in a kiln. One other firing schedule is 800 c 1472 f for 2 hours which is preferable when prometheus copper clay is combined with pbc.

These changes are defined by changes in the kiln atmosphere or the firing ramp. Place the piece directly on the firing shelf. Follow the two phase firing schedule below if you plan to enamel your piece. Phase 1 open shelf fire for pieces 3mm thick or less.

Place the piece directly on the firing shelf. Offered in lump wet form this clay is waterbased air dries and fires to 999 pure copper. Place piece no larger than us silver dollar and 25g weight on a firing brick and heat until cherry red for at least 7 minutes depending on size. Quench pieces as outlined above.

Ramp at 500 f hour 278 c hour then hold at 560 f 293 c for 15 minutes. If a piece is any thicker than about 5 6mm thick you may need extra time due to the thickness of the. Pieces will be black and brittle after this firing. The already sintered copper piece and the still soft silver clay are placed together so that they will lock together during a second firing at the silver firing schedule.

Art clay copper only requires a 30 minute kiln firing time and you don t need to use any activated carbon or firing pans you can even fire it with a torch. Torch firing place the dried piece on a stainless steel mesh. Different product and may have a different firing schedule. For pieces thicker than 3mm.

Please remember this firing schedule is based on a cold kiln and thickness of the piece also is something you need to work out.