Gail Dapogny on mon 24 sep 01
If you need to burnish a bone dry pot (porcelain) and don't have time to
research and make up a terra sig, is it still possible to burnish
successfully? Should the piece be lubricated in some way...say with oil?
Thanks--
----Gail
Gail Dapogny
1154 Olden Road
Ann Arbor, MI 48103-3005
(734) 665-9816
gdapogny@umich.edu
vince pitelka on tue 25 sep 01
> If you need to burnish a bone dry pot (porcelain) and don't have time to
> research and make up a terra sig, is it still possible to burnish
> successfully? Should the piece be lubricated in some way...say with oil?
Gail -
Yes, that is very possible. On the bone dry pot, use a light smear coat of
olive oil, glycerin, Crisco, or lard. Let it soak in, and then start
burnishing. It will take a little while before a real shine starts
appearing, but in the mean time you will be leveling and compressing the
surface, which is very important to achieve a good burnish. It is also
noteworthy that a burnished surface which was pre-mostened with oil/grease
will be much harder before the firing than one pre-moistened with just
water. The latter will be damaged by any moisture or even finger prints,
while the burnished surface surface pre-moistened with oil/grease seems far
more resistant and durable. There is no difference during or after the
firing, but before the firing is when most damage to burnished surfaces
occurs.
Best wishes -
- Vince
Vince Pitelka
Appalachian Center for Crafts
Tennessee Technological University
1560 Craft Center Drive, Smithville TN 37166
Home - vpitelka@dtccom.net
615/597-5376
Work - wpitelka@tntech.edu
615/597-6801 ext. 111, fax 615/597-6803
http://www.craftcenter.tntech.edu/
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