Mary Lynch on sat 31 aug 02
I'm a constant lurker and have learned so much from the info shared on
Clayart; now I have a question and hope some of you will help me out with
this.
I dropped by the city art center where I work and found the lid propped open
3-4 in. and the temp reading was still over 500 degrees. (We fire to ^6 in a
Skutt 1227.) I was told and have read that the kiln shouldn't be opened
until it drops to at least 212, which is what I do with my own work. I don't
know what the consequences may be other than affecting glaze development,
especially of matt glazes (and that's what we are using at the center
primarily).
Will it cause crazing or other glaze defects? Can ware crack or warp as a
result? There are all levels of work being done, from beginner to
intermediate, handbuilt and thrown construction, very large to very small.
Part of my motivation is to provide the person doing the firing with input
other than my own, so any and all info about this will be much appreciated.
Many thanks,
Mary in TN
Snail Scott on sun 1 sep 02
At 08:22 AM 8/31/02 -0700, you wrote:
I was told and have read that the kiln shouldn't be opened
>until it drops to at least 212, which is what I do with my own work. I=
don't
>know what the consequences may be...
Opening a hot kiln can cause crazing, and is widely=20
believed to cause dunting. Opening too soon is thus=20
a bad idea, though 212=BAF seems excessively cautious=20
to me.=20
-Snail
Marie Tedesco Folderman on mon 2 sep 02
Hello to all,
Curious...what is a safe temperature to open a glaze
kiln and or a bisque kiln? At school they told us not
to touch the kiln to 125 degrees! What is a safe
temperature?
Thank you, Marie
=====
Walk in Beauty!
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