Wade Blocker on tue 16 oct 01
Sue,
Just reglaze the inside of the bowl with another glaze that works for
you, a transparent glaze with no added oxides, and refire , perhaps at one
cone lower. That will probably smooth out the first glaze, and result in an
interesting glaze on the inside of your bowl. Mia in ABQ
Beach, Sue on tue 16 oct 01
Hello friends,
Just unloaded a glaze kiln & wondered if you could answer a question for
me about a problem I had with one glaze.
This glaze is wonderful on the outside of forms - a satiny black. On
the inside, however, it looks like petrified boiling sugar water -
bumpy, pinholed, etc. Any suggestions as to how to fix it (besides not
using the glaze on the inside of pots)?
I'm new at firing my kiln & so could be doing something to cause this.
I fire to ^6 in an electric kiln and program in a 10 minute hold at the
top. I let the kiln cool at its own rate after the hold.
Suggestions would be very welcome because I really like this glaze when
it works!
Sue Beach
in rainy & gray central Indiana
Dai Scott on tue 16 oct 01
Hi, Sue - I'm sure the more knowledgeable glaze gurus will answer this
question, too, but I find when you dip a bowl in glaze, the amount of glaze
that attaches to the inside of the bowl is more than on the outside of the
bowl (must be how we hold it or something). This doesn't seem to happen as
often with plates and other flat pots. Anyway, my expereience is that a
very thick layer of glaze doesn't melt the same way a thinner one does.
Maybe this is your problem. Good luck!
Dai in Kelowna, BC
"There is no right way to do the wrong thing."
potterybydai@home.com
----- Original Message -----
From: "Beach, Sue"
To:
Sent: Tuesday, October 16, 2001 6:56 AM
Subject: Glaze Fault Question
Hello friends,
Just unloaded a glaze kiln & wondered if you could answer a question for
me about a problem I had with one glaze.
This glaze is wonderful on the outside of forms - a satiny black. On
the inside, however, it looks like petrified boiling sugar water -
bumpy, pinholed, etc. Any suggestions as to how to fix it (besides not
using the glaze on the inside of pots)?
I'm new at firing my kiln & so could be doing something to cause this.
I fire to ^6 in an electric kiln and program in a 10 minute hold at the
top. I let the kiln cool at its own rate after the hold.
Suggestions would be very welcome because I really like this glaze when
it works!
Sue Beach
in rainy & gray central Indiana
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Mert & Holly Kilpatrick on tue 16 oct 01
Sue,
If you find that Dai's idea is what's happening, you could wipe the inside
of the container with a damp sponge before glazing. I usually wipe the back
sides of plates with a sponge, so that they won't suck up so much glaze.
Holly
----- Original Message -----
From: "Dai Scott"
To:
Sent: Tuesday, October 16, 2001 6:34 PM
Subject: Re: Glaze Fault Question
> Hi, Sue - I'm sure the more knowledgeable glaze gurus will answer this
> question, too, but I find when you dip a bowl in glaze, the amount of
glaze
> that attaches to the inside of the bowl is more than on the outside of the
> bowl (must be how we hold it or something). This doesn't seem to happen
as
> often with plates and other flat pots. Anyway, my expereience is that a
> very thick layer of glaze doesn't melt the same way a thinner one does.
> Maybe this is your problem. Good luck!
> Dai in Kelowna, BC
Cindy Strnad on tue 16 oct 01
Dear Sue,
The temperature inside a bowl (or anything) will
be a little bit warmer than outside. Try firing to
^5 and programming a 45 minute hold to even
temperatures out. At the end of this time, your #6
cone probably will also be down. If not, hold a
bit longer until it falls.
Cindy Strnad
Earthen Vessels Pottery
RR 1, Box 51
Custer, SD 57730
USA
cindy@earthen-vessels-pottery.com
http://www.earthen-vessels-pottery.com
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