Ed Bull on fri 24 nov 06
Cyndi,
Hope you had a successful show and had to part with some pots!
I enjoyed viewing you work and loved both the forms and glaze choices.
Many of the glazes I recognize and admire, but I was particularly taken
by your white birch series of crawling shinos.
We use Malcolm Davis, GW pearl, and Dresang shinos and I love 'em.
Been interested in trying some crawlers after reading Pete Pinnell's
article in Clay Times.
Was gonna start there, but you have any suggestions?
I own a studio with scores of residents, associates, and students.
Have about a dozen interested in crawling shinos.
Cheers,
Ed Bull
www.creativeclaypottery.com
John Britt on sun 26 nov 06
Ed,
As you know, you use shinos which could be called high feldspar. (Around
80%) If you watch the clay component it will be around 20%.
If you want crawling shinos just find recipes that have clay over 20%,
like Gustin Shino:
GUSTIN SHINO cone 10
Nepheline Syenite 45.00
F-4 Feldspar 11.00
Spodumene 15.00
Kentucky Old Mine #4 15.00
EPK Kaolin 10.00
Soda Ash 4.00
It has 25% clay and if you put it on thick it will crawl. (To prevent
crawling in shinos- calcined half the clay.)
Or find ones with over 25% clay, like Malcolm's Shino. (Total the
ingredients without the soda ash and it has about 40% clay, essentially a
slip with soda ash) It will crawl badly if applied thick.
If you need other recipes let me know.
The easiest and perhaps most educational test would be a 1000 gram batch
of Dressang Shino to which you add 3% clay (either om-4 or EPK) then 6%,
then 9% etc. to about 40% total. Be sure to apply thin, medium and thick.
You may have to add water to keep a consistent glaze batch, since you are
adding so much clay.
Best of luck,
John Britt
www.johnbrittpottery.com
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