norwicha on thu 12 feb 98
------------------
Does anyone know of a clay body that is under 3=25 absorbtion and has a =
light
to medium orange red color when fired to cone 4?
Lyn,
I have a friend who has been looking for the same thing for about 2 years =
and
has done thousands of clay experiments but always with less than =
satisfactory
results, it is always too dark, too red, not vitrified etc. She has =
practically
gone insane and loses much sleep over this. I personally don't think that =
one
exists. Good luck=21=21
Ann
Lili Krakowski on thu 12 feb 98
A potter I know wedges THREE BODIES TOGETHER to get exactly what
she wants! (As I detest intruding on others' privacy
no name or location) You may find, as I have that wedging a red
earthenware
body with a higher fired buff one--like Ellen Buff from Highwater, or one
of Millers c.6 buff clays will
get you what you want. I'd just get some and taking it straight out of the
bags, weight out 1 part A to 2 parts B and so on. Of course if at this
point you ahve a pugmill it all is easy. But this potter I mentionned
does it all by hand
On Thu, 12 Feb 1998, norwicha wrote:
> ----------------------------Original message----------------------------
> ------------------
> Does anyone know of a clay body that is under 3% absorbtion and has a light
> to medium orange red color when fired to cone 4?
>
> Lyn,
>
> I have a friend who has been looking for the same thing for about 2 ye
> has done thousands of clay experiments but always with less than satisfactory
> results, it is always too dark, too red, not vitrified etc. She has practical
> gone insane and loses much sleep over this. I personally don't think that one
> exists. Good luck!!
>
> Ann
>
Lili Krakowski
Darrol Shillingburg on fri 13 feb 98
You might get some results by trying formulations useing CRed Red. That's
the only name I know for it. It's a red stoneware that has a very
orange-red tendency. My supplied has been Ceramic King in Albuqueque,
http://www.nmclay.com/ceramic.
It is the base clay used in Lagunas SBRed, a midrange red that is very
"fire sensitive". I have gotten colors ranging from light orange to brick
red to metalic black, depending on kiln temperature and atmoshpere.
Good luck!!
Darrol in Elephant Butte, NM
DarrolS@Zianet.com
on the web at http://www.zianet.com/DarrolS
----------
From: norwicha
To: Multiple recipients of list CLAYART
Subject: Medium orange/red clay
Date: Thursday, February 12, 1998 5:59 AM
----------------------------Original message----------------------------
------------------
Does anyone know of a clay body that is under 3% absorbtion and has a light
to medium orange red color when fired to cone 4?
Lyn,
I have a friend who has been looking for the same thing for about 2
years and
has done thousands of clay experiments but always with less than
satisfactory
results, it is always too dark, too red, not vitrified etc. She has
practically
gone insane and loses much sleep over this. I personally don't think that
one
exists. Good luck!!
Ann
----------
Janet Price on fri 13 feb 98
>
> On Thu, 12 Feb 1998, norwicha wrote:
>
> > ----------------------------Original message----------------------------
> > ------------------
> > Does anyone know of a clay body that is under 3% absorbtion and has a light
> > to medium orange red color when fired to cone 4?
> >
Have you tried ART's orangestone? I don't know the absorbtion, but the
color sounds like it might be exactly what you want. It has a very low
rate of shrinkage, which is great for adding handles, feet, etc. It
does strange things to lots of glazes, but I usually like the effect.
--
Janet Price, Chief Information Officer
Carroll College, Waukesha WI 53186
jprice@carroll1.cc.edu or jprice@ccadmin.cc.edu
414-524-7120
Al Pfeiffer on sat 14 feb 98
Concerning Orangestone - I tried some over a year ago and do love the color!!
However, I found a number of technical issues which ART had some feedback on.
The glaze fit problem had to do with outgassing of the body even after it was
bisqued to C/04 - it was recommended to bisque as high as C/2 ! Even so there
are limited numbers of glazes which will lay flat - they have some they
recommend. I also understand that above C/6 the clay body becomes very
plastic. I did limited experimentation but the color may be worth your
playing with it. Al Pfeiffer
Tony Hansen on sat 14 feb 98
>Does anyone know of a clay body that is under 3% absorbtion and has a
>light to medium orange red color when fired to cone 4?
>I have a friend who has been looking for the same thing for about 2 years
>and has done thousands of clay experiments but always with less than
>satisfactory results, it is always too dark, too red, not vitrified etc.
No problem. Redart will be much less than 3% porosity at cone 4.
Just add a mix of ball clay and kaolin to bring it up.
If it is still not plastic enough add some bentonite.
Banta Red clay is another option, it is similar to Redart.
Or you could start with a high fire red like Carbonale clay (12% iron)
and add feldspar until it has the desired maturity.
Or Plainsman Redstone, a medium fire red, very little kaolin would
be needed.
Or why not just use a buff clay that has the desired maturity and
add 5% red iron oxide?
--
-------
T o n y H a n s e n thansen@digitalfire.com
Get INSIGHT, Magic of Fire at http://digitalfire.com
Ron Wright on sun 15 feb 98
A.R.T.'s orangestone is not orange at all. It is a medium dark brown
speckled body made to resemble reduction fired clay in oxidation. If
fired over cone 5, bad things happen. It is very attractive fired to
cone 5 and I use it whenever I make an unglazed piece. Every once in a
while I make something out of it just to remind myself that you don't
need to glaze everything. It hates glazes. I have only found a few
glazes that don't craze when used on this body.
Ron Wright
Shiresham Pottery - Chicago
http://www.concentric.net/~wrright
Janet Price wrote:
>
> ----------------------------Original message----------------------------
> >
> > On Thu, 12 Feb 1998, norwicha wrote:
> >
> > > ----------------------------Original message----------------------------
> > > ------------------
> > > Does anyone know of a clay body that is under 3% absorbtion and has a ligh
> > > to medium orange red color when fired to cone 4?
> > >
>
> Have you tried ART's orangestone? I don't know the absorbtion, but the
> color sounds like it might be exactly what you want. It has a very low
> rate of shrinkage, which is great for adding handles, feet, etc. It
> does strange things to lots of glazes, but I usually like the effect.
>
> --
> Janet Price, Chief Information Officer
> Carroll College, Waukesha WI 53186
> jprice@carroll1.cc.edu or jprice@ccadmin.cc.edu
> 414-524-7120
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