Joyce Lee on sun 25 jan 98
I do have a large folder of terrasigillata information in addition to
benefitting from Vince's Ancient Clay workshop this last summer.
However, I don't have information, nor can I find it, about putting
terrasigillata on the bottom of glazed pots that are destined to be
fired to ^10. I assume you would then burnish the bottom. My questions:
Wouldn't the pot lose the burnished appearance when fired so high? Or is
that immaterial if you are simply trying to further seal the bottom of
the pot? Thanks to Linda Arbuckle for posting about terrasig. I've
admired some highfired pots lately that have a somewhat burnished RIO
appearance on the bottom, but the potters weren't sharing this
particular "how-to." Maybe terrsig is their secret? Thank you.
Joyce
In the Mojave enamored by pots, potters and Clayart as always.
Vince Pitelka on mon 26 jan 98
>I do have a large folder of terrasigillata information in addition to
>benefitting from Vince's Ancient Clay workshop this last summer.
>However, I don't have information, nor can I find it, about putting
>terrasigillata on the bottom of glazed pots that are destined to be
>fired to ^10. I assume you would then burnish the bottom. My questions:
>Wouldn't the pot lose the burnished appearance when fired so high? Or is
>that immaterial if you are simply trying to further seal the bottom of
>the pot? Thanks to Linda Arbuckle for posting about terrasig.
Joyce -
As long as you use a clay which will survive at ^10 without turning into a
glaze, you will have no problem. In otherwords, at cone ten, use a terra
sig made of ball clay, stoneware clay, kaolin, or fireclay, or some
combination of these. There is no need to burnish it - just apply the sig
to hard-leather-hard or bone dry bottom, let it absorb, and polish with a
soft cloth or a piece of grocery-bag plastic.
- Vince
Vince Pitelka - vpitelka@DeKalb.net
Home 615/597-5376, work 615/597-6801, fax 615/597-6803
Appalachian Center for Crafts
Tennessee Technological University
1560 Craft Center Drive, Smithville TN 37166
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