Gail Dapogny on wed 28 apr 04
I'm researching kiln posts for our guild's 95-cubic foot high-fire
reduction kiln; have looked through the archives, and find myself
confused. Our old posts -- decades old and deteriorating-- are
cylindrical sil carbide posts with hollows at each end. We could get
them but they are horrendously expensive.
Cutting bricks is an option, but probably there are better options.
I was looking at Bailey's dry-pressed high alumina posts with interest
and wonder how they hold up.
I thought I had read that the Acme Marl material used in shelves is
high alumina and different from cordierite, but several people implied
that they are the same material. Somewhere (Vince perhaps?), I believe
that I read that cordierite is less refractory and not so good at cone
10 as high alumina.
What do you all use at high temps, big kilns (lots of weight), and
frequent firings?
Any and all help greatly appreciated.
...Gail in Ann Arbor
Gail Dapogny gdapogny@umich.edu
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