Judith Enright on wed 11 jun 97
With the recent recommendations for kiln wash or, alternatively,
dusting the shelves with alumina hydrate (recommended for porcelain
glaze firings in particular), I thought I'd add this: I dusted with
the alumina hydrate and then (stupidly, I'll admit) proceeded to use
the EnviroVent during a glaze firing. This doesn't work. In my
experience, the stuff did not lay obediently on the shelves but tended
to want to fly around a bit thereby ruining what should have been a
perfectly good load.
Any recommendations on this, other than refraining from using the
E-Vent?
TIA
-- Judith Enright @ Black Leopard Clayware & Pottery
David Woodin Set Clayart Digest on thu 12 jun 97
You don't need kiln wash if you use ITC 100 call 904-285-0200 for more
information.
Jasper Stil on mon 16 jun 97
------------------
On Wed, 11 Jun 1997 17:50:51 EDT, you wrote:
=3E ----------------------------Original message----------------------------
=3E With the recent recommendations for kiln wash or, alternatively,
=3E dusting the shelves with alumina hydrate (recommended for porcelain
=3E glaze firings in particular), I thought I'd add this: I dusted =
with
=3E the alumina hydrate and then (stupidly, I'll admit) proceeded to =
use
=3E the EnviroVent during a glaze firing. This doesn't work. In my
=3E experience, the stuff did not lay obediently on the shelves but =
tended
=3E to want to fly around a bit thereby ruining what should have been a
=3E perfectly good load.
=3E
=3E
Hi Judith
I've read that when using alumina hydrate on shelves, you need to fire the =
kiln
empty to 1250c, 3 times before it's safe for use.
I suppose that was'nt what you did? and that's why I don't use the stuff.
Hope you'll solve the problem.
Marie Claire
Suzanne Storer on mon 16 jun 97
Judith,
In response to your dusting with alumina hydrate not working:
I dust my shelves lightly with silica sand now, per suggestion on clayart.
Big help and thanks to whomever suggested it. I use an envirovent and fire
to cone 5. Works fine. I assume any silica that may fly onto the glaze just
fires right in like the other silica in the glaze. I dump a little silica
on the shelf and lightly brush it around with a large house paint brush,
dumping off any excess.
Suzanne Storer
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