Joyce Lee on thu 26 mar 98
I'm using a ^10 reduction celadon glaze right now that I like very much.
However, I'm not sure the results are repeatable. This is a pretty
apple-green celadon that looks great over carving, oxides etc. It also
has a pronounced rosy hue here and there...sometimes in the recessed
areas of carving or stamping, but sometimes just on the flatter areas.
Anybody know if this is what usually happens and/or what might cause
such a color. The only other celadons I've tried have been either
grey-green or blue. The grey-green was as expected, but the blue was
white. I'd love to have the blue, but am at a loss as to what happened
in this case, also. Thank you for any help you might offer.
Joyce
In the Mojave thinking about following Knox-from-Marietta's suggestion
and wearing a name tag wherever I go so that I'll feel like I'm at
NCECA. If I had reservations to all the places I wanted to go, I'd be
out of here in a snap. Foolish old woman.
amy parker on fri 27 mar 98
At 07:47 AM 3/26/98 EST, you wrote:
>----------------------------Original message----------------------------
>I'm using a ^10 reduction celadon glaze right now that I like very much.
>However, I'm not sure the results are repeatable. This is a pretty
>apple-green celadon that looks great over carving, oxides etc. It also
>has a pronounced rosy hue here and there...sometimes in the recessed
>areas of carving or stamping, but sometimes just on the flatter areas.
>Anybody know if this is what usually happens and/or what might cause
>such a color.
I have a pitcher that is a lovely light-green celadon where one whole
side of it has the most incredible rosy blush. It was placed in a kiln
next to a glaze that comes out deep red in reduction. Theory at the
studio is that the fumes from the red pot bled into the green one.
I would LOVE to test this theory!!!
amy parker Lithonia, GA
amyp@sd-software.com
Grimmer on fri 27 mar 98
Joyce,
I'm willing to bet the rose-colored flashes on your celadons are
from a nearby copper glaze. That stuff can be pretty volatile at
stoneware temperatures, often drifting all around the kiln. A neat
example of this is to glaze a pot in your base clear with 1 or 2% tin
added. Fire it real close to a test tile glazed with a high copper
glaze. It's not hard to put a red flash on the pot this way. This
technique can be used to great affect. Think of a nice, roundy
teapot glazed in white with a lovely apple red blush on the side.
As far as getting a good blue celadon, use the highest K2O content
you can get away with (K-200 spar is great this way), keep the
titania low by using grolleg instead of ball or EPK, and maybe even
use a grolleg body or grolleg slip. Keep the iron content of the
glaze low, too, perhaps 1% of batch.
steve grimmer
marion illinois
Joyce Lee wrote:
>
> ----------------------------Original message----------------------------
> I'm using a ^10 reduction celadon glaze right now that I like very much.
> However, I'm not sure the results are repeatable. This is a pretty
> apple-green celadon that looks great over carving, oxides etc. It also
> has a pronounced rosy hue here and there...sometimes in the recessed
> areas of carving or stamping, but sometimes just on the flatter areas.
> Anybody know if this is what usually happens and/or what might cause
> such a color. The only other celadons I've tried have been either
> grey-green or blue. The grey-green was as expected, but the blue was
> white. I'd love to have the blue, but am at a loss as to what happened
> in this case, also. Thank you for any help you might offer.
>
> Joyce
> In the Mojave thinking about following Knox-from-Marietta's suggestion
> and wearing a name tag wherever I go so that I'll feel like I'm at
> NCECA. If I had reservations to all the places I wanted to go, I'd be
> out of here in a snap. Foolish old woman.
Osian2 on sat 28 mar 98
In a message dated 98-03-27 08:28:51 EST, you write:
<< I have a pitcher that is a lovely light-green celadon where one whole
side of it has the most incredible rosy blush. It was placed in a kiln
next to a glaze that comes out deep red in reduction. >>
I gotta try this too. We have a beautiful cone 10 celadon also and i'd love
to get a rosy blush on it....the only red we have is mason red...is that as
red as your glaze?
Its sort of a brick red. Please tell me if it happens again when u test it.
Stephen Mills on sat 28 mar 98
Amy,
Glazes that have a copper content tend to fume, and contaminate some
kilns especially in reduction (also affecting pale or white pots close
to them). At the college I attended Someone had put some copper red
glaze in our brick built gas Kiln. The result was that thereafter
virtually all white glazes came out a pale rosy pink. Later I fired some
pots of the same type in my fibre lined Kiln and never found any
subsequent evidence of Kiln contamination. So on that evidence fibre is
not as vunerable to contamination as brick. Cross flashing I would say
caused that rosy blush.
Steve
Bath
UK
>
>I have a pitcher that is a lovely light-green celadon where one whole
>side of it has the most incredible rosy blush. It was placed in a kiln
>next to a glaze that comes out deep red in reduction. Theory at the
>studio is that the fumes from the red pot bled into the green one.
>I would LOVE to test this theory!!!
>amy parker Lithonia, GA
>amyp@sd-software.com
>
--
Steve Mills
Bath
UK
home e-mail: stevemills@mudslinger.demon.co.uk
work e-mail: stevemills@bathpotters.demon.co.uk
own website: http://www.mudslinger.demon.co.uk
BPS website: http://www.bathpotters.demon.co.uk
Riff Fenton on sun 29 mar 98
consider that what you might have is not a celadon glazed pot
in the first place, but, rather, a copper glaze that reduced on
only one side or in one spot.
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