Tommy Humphries on fri 8 sep 00
The clear glaze simply brings out the natural color of the clay. You can see
this without glazing the pot by wiping the pot (fired to ^6) with water.
This color will be the color under the glaze.
The dry surface of the unglazed pot is very rough, so that light rays are
scattered causing the color to be muted. The clear glaze prevents this
scattering to a great extent, causing the color to be darker and richer.
Tommy Humphries
----- Original Message -----
From: "Priscilla Wilson and/or Janice Lymburner"
To:
Sent: Friday, September 08, 2000 7:13 PM
Subject: Clear glaze on red-brown body
Can anybody tell me if it's true that ANY clear glaze will make a reddish
brown clay body look brown? The dark red brown is so beautiful; is it
possible to keep it that color??? It's a stoneware that has to be fired to
cone 6. Thanks - Priscilla, hoping in Sautee, GA
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Priscilla Wilson and/or Janice Lymburner on fri 8 sep 00
Can anybody tell me if it's true that ANY clear glaze will make a =
reddish brown clay body look brown? The dark red brown is so beautiful; =
is it possible to keep it that color??? It's a stoneware that has to be =
fired to cone 6. Thanks - Priscilla, hoping in Sautee, GA
Heidrun Schmid on sat 9 sep 00
Priscilla, you can glaze the inside and leave the outside unglazed to keep the lovely colour of the clay.
Heidrun
Back in Bangkok after 2 months in Europe
Priscilla Wilson and/or Janice Lymburner wrote:
> Can anybody tell me if it's true that ANY clear glaze will make a reddish brown clay body look brown? The dark red brown is so beautiful; is it possible to keep it that color??? It's a stoneware that has to be fired to cone 6. Thanks - Priscilla, hoping in Sautee, GA
>
> ______________________________________________________________________________
> Send postings to clayart@lsv.ceramics.org
>
> You may look at the archives for the list or change your subscription
> settings from http://www.ceramics.org/clayart/
>
> Moderator of the list is Mel Jacobson who may be reached at melpots@pclink.com.
Michael Banks on sat 9 sep 00
Yep Priscilla,
It's true. The glaze fluxes the surface of the body to a greater degree of
maturity, which for red bodies is usually brown. But sometimes you can
preserve the red by firing lower -provided you can still get the glaze to go
glossy and also fit the lower-fired body.
Michael
in NZ
----- Original Message -----
Priscilla Wilson wrote:
Can anybody tell me if it's true that ANY clear glaze will make a reddish
brown clay body look brown? The dark red brown is so beautiful; is it
possible to keep it that color??? It's a stoneware that has to be fired to
cone 6. Thanks - Priscilla, hoping in Sautee, GA
Lorraine Pierce on sun 10 sep 00
Hi Pricilla...
I have found there is a difference in the shades of brown created by
different 'clear ' glazes over the same body. For instance on a terra cotta
body the glaze called Alfred Clear ^04 appears darker than the body, whereas
the glaze Birdsey Clear ^04 is about the same color value as the clay body.,
tho of course the glazed portion of the ware is shinier than the bare clay.
And then there is terra sigilatta, the burnished CLAY finish, not a glaze.
Does this help? I do not work with a dark body at higher temperatures, so
others will have to help you there, but I would assume the same principals
would hold true.
Lori in New Port Richey, Fl.
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