Gene Arnold on sun 27 apr 08
I posted this friday and I haven't recieved any clayart until today =
(sunday)=20
and only 6 at that, so I'm re-posting to see if this one makes it =
through.
I really don't know if I have black core of not, I don't think I do. My =
clay=20
(standard 119) after it is fired is a dark charcoal gray through out not =
just in the center. Is this what reduced clay with iron looks like on =
the=20
inside, or am I reducing to heavy. I'm firing to cone 10 and reduction =
is=20
started at 1600 degrees and held for one hour. My reduction is done with =
the=20
damper only. I have big flames at the top peep and a small flame at the=20
bottom peep. The flames inside the kiln at this point seems to be lazy =
and=20
licking around with not a lot of turbulence.
I bisque fire in an electric kiln to cone 06.
After reduction do you keep the kiln in a mild reduction or do you go =
back=20
into oxidation until the end of the firing?
My kiln is a 35ft. MFT with two b-4's ronsom venture burners. Fired on=20
propane.
All the glaze colors seem to be correct but that clay color through out =
sure=20
is dark. The bottoms of the pots on the un-glazed portion is a nice =
toast=20
brown. But just under that if it is chipped it is almost black.
As I've said in the past this is my first gas kiln and there are not any =
others real close by me. So I'm kinda flying by the seat of my pants =
here.
Gene
mudduck@mudduckpottery.net
www.mudduckpottery.net
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