These changes are defined by changes in the kiln atmosphere or the firing ramp.
Copper clay firing schedule.
Place the piece directly on the firing shelf.
Follow the two phase firing schedule below if you plan to enamel your piece.
This initial firing burns out all the binders which seems to improve the sintering in the second phase.
Pieces will be black and brittle after this firing.
Always fire copper components first to copper firing schedule.
It is a incredibly reliable clay and the clay we recommend whole heartedly to anyone new to base metal clay.
Ramp at 500 f hour 278 c hour then hold at 560 f 293 c for 15 minutes.
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.
For pieces thicker than 3mm.
Cyprus copper clay firing guide.
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.
Offered in lump wet form this clay is waterbased air dries and fires to 999 pure copper.
You shape and work with art clay copper just like normal silver clay.
Each clay for your own kiln.
One other firing schedule is 800 c 1472 f for 2 hours which is preferable when prometheus copper clay is combined with pbc.
I do a two phase firing.
To fire art clay copper with a butane torch.
Economical easy to form fire and finish the fired clay presents as beautiful on its own or as the perfect platform for enameling projects.
Please remember this firing schedule is based on a cold kiln and thickness of the piece also is something you need to work out.
Place the piece directly on the firing shelf.
Torch firing place the dried piece on a stainless steel mesh.
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.
The two metals do not sinter together.
Fire in activated coconut carbon.
Quench pieces as outlined above.
Fire on an open shelf no carbon ramp speed 500 temp 560 hold 15 min.
Fire in a kiln.
Phase 1 open shelf fire for pieces 3mm thick or less.