Copper Clay Firing Schedule

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

Copper clay firing schedule.

It is a incredibly reliable clay and the clay we recommend whole heartedly to anyone new to base metal clay. Phase 1 open shelf fire for pieces 3mm thick or less. Pieces will be black and brittle after this firing. To fire art clay copper with a butane torch.

Offered in lump wet form this clay is waterbased air dries and fires to 999 pure copper. This initial firing burns out all the binders which seems to improve the sintering in the second phase. Economical easy to form fire and finish the fired clay presents as beautiful on its own or as the perfect platform for enameling projects. 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.

One other firing schedule is 800 c 1472 f for 2 hours which is preferable when prometheus copper clay is combined with pbc. If a piece is any thicker than about 5 6mm thick you may need extra time due to the thickness of the. Each clay for your own kiln. These changes are defined by changes in the kiln atmosphere or the firing ramp.

Fire as a part of a 2 fire schedule. Ramp at 500 f hour 278 c hour then hold at 560 f 293 c for 15 minutes. Place the piece directly on the firing shelf. The two metals do not sinter together.

Always fire copper components first to copper firing schedule. You shape and work with art clay copper just like normal silver clay. I do a two phase 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.

Torch firing place the dried piece on a stainless steel mesh. Please remember this firing schedule is based on a cold kiln and thickness of the piece also is something you need to work out. Fire in a kiln. For pieces thicker than 3mm.

Different product and may have a different 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. 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. Follow the two phase firing schedule below if you plan to enamel your piece.

Cyprus copper clay firing guide.