samira@mindspring.com on mon 7 apr 97
I fire cone 9 in an electric kiln. I am using a white satin matt glaze and
over painting with mason stains and oxides mixed with gerstly borate and
water. the mix is usually 2 color to one gerstly. They all work great
except the cobalt sometimes fumes .I don't know how to stop this from
happening. Any help would be greatly appreciated.
Brad Sondahl on mon 7 apr 97
samira@mindspring.com wrote:
>
> ----------------------------Original message----------------------------
> I fire cone 9 in an electric kiln. I am using a white satin matt glaze and
> over painting with mason stains and oxides mixed with gerstly borate and
> water. the mix is usually 2 color to one gerstly. They all work great
> except the cobalt sometimes fumes .I don't know how to stop this from
> happening. Any help would be greatly appreciated.
I'm not quite sure what you mean by fuming (copper volatilizes, cobalt
doesn't usually). But Cobalt Carb can be applied without mixing with GB
or anything else. It makes nice clean lines for me.
--
Brad Sondahl
bsondahl@camasnet.com
http://www.camasnet.com/~asondahl
PO Box 96, Nezperce ID 83543
Janet H Walker on thu 17 apr 97
...except the cobalt sometimes fumes .I don't know how to stop this...
...I'm not quite sure what you mean by fuming. It makes nice clean lines fo
I don't know what transpired in the intervening week on ClayArt (argh,
it takes a very long time to catch up after being away). BUT in case
no one else mentioned this tidbit -- there is a lengthy discussion in
Hamer about cobalt and (I'll be loose here) how it swims around in e
glaze soup. If it can swim, I'll bet it can fly ;->
Anyhow, take a look Hamer for more than you ever imagined about cobalt.
Jan Walker
Cambridge MA USA
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