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Re: Firing clay in skutt kiln

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From: Woody Duncan (wduncan_at_TeacherArtExchange)
Date: Sun Nov 25 2001 - 15:54:24 PST

Barb,
        I usually let things dry for like 3 weeks and do the
candle thing like you said before taking about 7-8 hours
to reach 05. Perhaps some of your students are reworking
the clay several times and leaving air pockets in the work.
                That's the thing that gives me trouble, Woody in KC

BNPurdy@aol.com wrote:
>
> Hi! I need your help. I haven't taught ceramics in ten years. This
> year I'm teaching a ceramics course which I'm thoroughly enjoying.
> The problem is that projects are exploding in the kiln. On Tuesday,
> I fired the kiln. I candled the projects for 24 hours in the kiln at a
> temperature hold of 180 degrees. After 24 hours I set the kiln to
> fire on slow speed at cone 05. On Saturday, when I opened the kiln I
> had several projects explode. Can anyone help me? 

-- 
       I'm from Kansas,  where the Legislature and BOE keep trying 
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