On the recommendations of Pam East, I use the following schedule for
my Copper Clay and I have been pretty happy with it. This is what Pam
said when asked about a firing schedule:
I am currently using the following firing schedule for COPPRclay,
the Metal Adventures copper clay distributed by Rio Grande. This is
not to be confused with Hadar Jacobsen’s copper powder, which is a
different product and may have a different firing schedule.
I do a two phase firing.
Phase 1: Fire on an open shelf (no carbon) Ramp speed 500, Temp 560,
Hold 15 min.
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.
Phase 2: Place an inch or so of activated coconut charcoal in a
stainless steel pan. Place pieces in pan and cover with at least one
ince of more of the charcoal. I fill the pan to the top. Ramp Full,
Temp 1700, Hold 3.5 hours. Leave in kiln until below 300.
I love playing with the copper as well as the bronz clay. I hope you
have as much fun as I’ve been having.
Sandra Graves, IsisRising