Sheron Roberts on tue 6 mar 01
I have just recently made a=20
batch of Red Art terra sig=20
(Vince's recipe) and
a batch using Tennesse Ball
Clay (recipe acquired from an
Asheville potter)
My first!! =20
Both are so nice and creamy.
I have been
working on a sculpture composed
of several individual pieces. Round
and oblong shapes all nicely sanded
and smooth. I brushed on several
coats of the terra sig, applied a light
coat of Crisco and burnished with
a smooth river rock, giving the pieces
a light once over with a plastic=20
grocery bag.=20
I don't want to fire them.
They are so lovely just the way they
are. But I will fire them tomorrow.
Then I will see if my terra sig passes
the test of the fire and doesn't flake off.
Thanks a bunch Vince for your most
excellent instruction. I have almost
worn out the handouts from your workshop
at Murrell's Inlet last year.=20
Sheron in NC
By the way I believe you are right about the
vegetable shortening not working as well as
lard. Seems it just wants to slide around the
surface of the piece and not dry in. Or maybe
I put too much on at one time. Next time I am
trying some of the suggestions from the list.
vince pitelka on tue 6 mar 01
> The oil and stone burnishing technique is
> useful when burnishing regular clay, but
> is usually unnecessary when burnishing
> terra sigillata.
Snail -
Terra sigillata will polish without burnishing, but it makes the very best
burnishing slip. You can coat any claybody with terra sig, and then burnish
to a very high shine. You just get a better burnish when you have
concentrated such fine platelets on the surface. So burnishing certainly is
not necessary with terra sig, but it sure works well.
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/
Snail Scott on tue 6 mar 01
The oil and stone burnishing technique is
useful when burnishing regular clay, but
is usually unnecessary when burnishing
terra sigillata.
-Snail
At 12:15 AM 3/6/01 -0500, you wrote:
>...shapes all nicely sanded
>and smooth. I brushed on several
>coats of the terra sig, applied a light
>coat of Crisco and burnished with
>a smooth river rock, giving the pieces
>a light once over with a plastic
>grocery bag...
Russel Fouts on thu 8 mar 01
Sheron,
>> By the way I believe you are right about the vegetable shortening not
working as well as lard. Seems it just wants to slide around the surface of
the piece and not dry in. Or maybe I put too much on at one time. Next
time I am trying some of the suggestions from the list. <<
I also tried Vince's lard suggestion but I find that the amount needed is
MINIMAL. I just BRUSH my finger tips across the block of lard then rub them
on my palm to remove excess from the fingers (a motion like trying to
scratch your palm with the same hand). Then I brush very lightly all over
the inside surface of the plate with my finger tips to spread it around and
gradually start to polish, still just using the finger tips.
I find that if I use more, it soaks in and re-wets the sig (a white sig will
go transparent) and doesn't shine as well.
I don't often use this method though because I'm not really after this type
of hard shine. I much prefer a gentle sheen if I want any shine at all but
really want the sig for color, pattern or emphasis.
The heavier duty type of sandwich/freezer bags work best for me.
Russel
Russel Fouts
Mes Potes & Mes Pots
Brussels, Belgium
Tel: +32 2 223 02 75
Mobile: +32 476 55 38 75
Http://www.mypots.com
http://www.Japan-Net.ne.jp/~iwcat
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