Marj Beynon on sat 21 apr 01
Could we have a discussion about the durability of shino glazed ware? I =
have only been exploring shinos for a nano-second in comparison to =
other's experience and have many questions but have not heard or read =
many comments this aspect of shino glazes. Ron Roy has stated his =
dubious thoughts about this on the list but not in much detail.
When I see the expansion numbers that "Insight" show me I am loath to =
use this glaze on functional ware such as teapots etc.. I see porcelain =
teapots that are stunning but wonder about daily usage.
I understand that a grungy stoneware body with grog helps to alleviate =
some of the expansion problems but I am just not comfortable in using a =
finer body for functional work glazed in shino. I mean functional work =
that is subjected to stresses associated with tea, coffee and casseroles =
not the more passive but functional, serving dishes,storage pieces, =
flower containers etc.
Questions for the experienced - are you using a specially formulated =
porcelain/porcellaneous body? are you using a liner glaze with lower =
expansion numbers? do you give cautionary directions to customers who =
are indicating that the teapot will be used everyday? Is a tight body =
(.5-1%) the best choice to insure that the pots will not weep through =
the crazing?
Appreciate any comments. I intend to test test test but would like to =
hear from those who have been on this road for a long time. Thanks =
MarjB
=20
Hank Murrow on sat 21 apr 01
Marj wrote;
>Could we have a discussion about the durability of shino glazed ware? I
>have only been exploring shinos for a nano-second in comparison to other's
>experience and have many questions but have not heard or read many
>comments this aspect of shino glazes. Ron Roy has stated his dubious
>thoughts about this on the list but not in much detail.
>
>When I see the expansion numbers that "Insight" show me I am loath to use
>this glaze on functional ware such as teapots etc.. I see porcelain
>teapots that are stunning but wonder about daily usage.
>
>I understand that a grungy stoneware body with grog helps to alleviate
>some of the expansion problems but I am just not comfortable in using a
>finer body for functional work glazed in shino. I mean functional work
>that is subjected to stresses associated with tea, coffee and casseroles
>not the more passive but functional, serving dishes,storage pieces, flower
>containers etc.
>
>Questions for the experienced - are you using a specially formulated
>porcelain/porcellaneous body? are you using a liner glaze with lower
>expansion numbers? do you give cautionary directions to customers who are
>indicating that the teapot will be used everyday? Is a tight body (.5-1%)
>the best choice to insure that the pots will not weep through the crazing?
Dear Marj;
My shinos are of the nephsye/spodumene/kaolin school, and I have found no
problems in thirty years use on my normal stoneware bodies. However, Pamela
Vandiver and I have found that the reddish color in this type of shino is
around twenty millionths of a meter thick (VERY THIN), and Joe Bennion had
to replace a whole restaurant order because the feet of pots stacked on
each other rubbed the red color away over a couple of months' time. Your
mileage may vary!
As to the soda shinos, I don't know, but I hope Craig does.
Hank in Eugene
Chris Clarke on sun 22 apr 01
I use a liner glaze. It's glossy satin and very smooth. Never has a pin
hole and doesn't craze (on B-Mix and White Hawk (KickWheelPottery)) chris
chris@ccpots.com
www.ccpots.com
----- Original Message -----
From: Marj Beynon
To:
Sent: Saturday, April 21, 2001 6:36 AM
Subject: Shino Glazed Durability
Could we have a discussion about the durability of shino glazed ware? I
have only been exploring shinos for a nano-second in comparison to other's
experience and have many questions but have not heard or read many comments
this aspect of shino glazes. Ron Roy has stated his dubious thoughts about
this on the list but not in much detail.
When I see the expansion numbers that "Insight" show me I am loath to use
this glaze on functional ware such as teapots etc.. I see porcelain teapots
that are stunning but wonder about daily usage.
I understand that a grungy stoneware body with grog helps to alleviate some
of the expansion problems but I am just not comfortable in using a finer
body for functional work glazed in shino. I mean functional work that is
subjected to stresses associated with tea, coffee and casseroles not the
more passive but functional, serving dishes,storage pieces, flower
containers etc.
Questions for the experienced - are you using a specially formulated
porcelain/porcellaneous body? are you using a liner glaze with lower
expansion numbers? do you give cautionary directions to customers who are
indicating that the teapot will be used everyday? Is a tight body (.5-1%)
the best choice to insure that the pots will not weep through the crazing?
Appreciate any comments. I intend to test test test but would like to hear
from those who have been on this road for a long time. Thanks MarjB
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