Russel Fouts on mon 13 jan 97
Vince,
>> The thread which began with the bee-weed suryp has been fascinating, <<
Thanks
>> Pueblo potters doing blackware use a red slip in order to get a
darker black. (Our) The redart terra sig, whether burnished or polished,
usually gives varying shades of smoky red/black, which is very beautiful.
But in the same firing, the ball clay terra sig will give a wonderful dense
jet-black. What's going on here? Any ideas? <<
Yep. As I figure, the red sig I use (an earthenware clay) has a
lower maturation point than the white (ball clay) I use. I usually bisque
both to 1000 before smoking. The red closes up and pretty much resists the
smoke the white remains open and takes lots of smoke. To get a REALLY black
black, I smoke the red sig WITHOUT bisquing it first. Then it's completely
open and takes LOTS of smoke.
In any case, I think the key is the "openness" of the sig when it's
smoked. Maybe the pueblo potter's red clay is a higher fire clay than Red
Art.
Russel (an informed guestimatation)
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* Russel Fouts, CI$: 100021,23,
Bruxelles, Belgium
Internet: 100021.23@CompuServe.Com
"It took more then one man to change my name to Shanghai Lil."
MD
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