Mayssan1@AOL.COM on fri 9 jun 00
Lois
I have. And had no problem with the bisqued or glazed ware.
Good luck
Mayssan
www.clayvillepottery.com
Michelle Lowe on fri 9 jun 00
At 08:24 AM 6/9/2000 -0400, Lois Ruben Aronow wrote:
>I have recently become interested in refiring some of my glazed ware a
>second time at cone 06. (The first glaze firing is at cone 6.).
>
>Would it be OK for me to include this ware in with my bisque load? Or
>must they be fired separately? I was under the impression that gasses
>from the glazed ware will ruin the bisque, but I want to find out more
>about it.
>
>In the same vein, is it OK to fire a low-fire glaze load along with a
>bisque?
>
>Anyone done either of these things, and with what results?
I've done both quite often with no indication of bisque being ruined.
Mishy
Michelle Lowe, potter in the Phoenix desert \|/ |
mishlowe@amug.org -O- | |
mishlowe@aztec.asu.edu /|\ | | |
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http://www.amug.org/~mishlowe -\ /-----|-----
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Lois Ruben Aronow on fri 9 jun 00
I have recently become interested in refiring some of my glazed ware a
second time at cone 06. (The first glaze firing is at cone 6.). =20
Would it be OK for me to include this ware in with my bisque load? Or
must they be fired separately? I was under the impression that gasses
from the glazed ware will ruin the bisque, but I want to find out more
about it.
In the same vein, is it OK to fire a low-fire glaze load along with a
bisque? =20
Anyone done either of these things, and with what results?
Martin Howard on sat 10 jun 00
Most kilns have a temperature gradient from bottom, cool, to top, hot.
I put my bisque in the bottom, when for any reason I am not once firing, and
the glaze in the top.
If I want a pot to be especially softly bisqued, so as to take up more
glaze, then it is in the bottom.
But sometimes strength and a closer texture are more important; then it goes
in the top.
I have not had any real problems from this procedure, yet. Bisque, Glaze and
Once Fired; all go in the same kiln and the same time. Just think about
temperature when setting.
Martin Howard
Webb's Cottage Pottery
Woolpits Road, Great Saling
BRAINTREE, Essex CM7 5DZ
England
martin@webbscottage.co.uk
Cindy Strnad on sat 10 jun 00
Lois,
I've re-fired glazed ware at bisque temps, and fired low-fire ware with
fresh glazes along with bisque loads and it's worked just fine for me.
Cindy Strnad
earthenv@gwtc.net
Earthen Vessels Pottery
RR 1, Box 51
Custer, SD 57730
terryh on sun 11 jun 00
my experience is different.
i fire both, if the glaze is of black, blue, green, ... i don't see any
mal-effect on glazed pieces (though i place them at the lower shelves).
i fire glazed pieces separately if the glaze is of red, orange, purple, ...
the color dissipates in firing because of steam (my guess). i get white from
red glaze. (sorry, i haven't studied what the differences are between these
two groups of colorants)
terry
Terry Hagiwara
terryh@pdq.net
http://terryh.lookscool.com
http://www.geocities.com/SoHo/Cafe/3755
Jeff Lawrence on sun 11 jun 00
Hi,
My base 04 mat glaze contains zinc oxide and wrinkles up if there is a lot
of bisque in the same load. According to Parmalee (only one who mentions
this flaw), zinc reacts with sulfur-containing gases released by the
bisqueware
Jeff Lawrence vox: 505 753 5913
Sun Dagger Design fax: 505 753 8074
18496 US HWY 84/285 jml@sundagger.com
Espanola NM 87532 www.sundagger.com
Cyberpotter@AOL.COM on sun 11 jun 00
In a message dated 6/10/00 3:57:16 PM Eastern Daylight Time,
mishlowe@AMUG.ORG writes:
<< >
>Would it be OK for me to include this ware in with my bisque load? Or
>must they be fired separately? I was under the impression that gasses
>from the glazed ware will ruin the bisque, but I want to find out more
>about it. >>
At the arts center here, low fire glazed ware is routinely fired in a bisque
load along with greenware. Once in awhile I've seen a little shadowing on
some of the bisque which may have been from being set too close to a glazed
piece, but I'm not sure. Putting glazed ware and greenware on different
shelves would probably eliminate any risk.
Ron Roy on mon 19 jun 00
Yes - and the reason is - zinc oxide is easily reduced - is changed to the
metal which boils off. Probably the reason zinc has a bad reputation for
pinholing. Some is lost and the glaze is stiffer because of that.
RR
>My base 04 mat glaze contains zinc oxide and wrinkles up if there is a lot
>of bisque in the same load. According to Parmalee (only one who mentions
>this flaw), zinc reacts with sulfur-containing gases released by the
>bisqueware
>
>Jeff Lawrence vox: 505 753 5913
>Sun Dagger Design fax: 505 753 8074
>18496 US HWY 84/285 jml@sundagger.com
>Espanola NM 87532 www.sundagger.com
Ron Roy
93 Pegasus Trail
Scarborough
Ontario, Canada
M1G 3N8
Evenings 416-439-2621
Fax 416-438-7849
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