Cindy P Russell on tue 2 apr 96
Hi to all. I have another question for ya'll. I have a student who
wants to color clays with stains then inlay them into a white clay body.
I have seen pictures of this being done but do not know what amounts to
add to the base clay. Do we experiment and find the correct amounts or
can someone give me a starting point.
Thanks in advance.
Cindy Russell
Stratford High School
Stratford, Texas
Crussel@tenet.edu
ret on tue 2 apr 96
Try to get a copy of "Finding one's Way with Clay", by Paulus Berensohn.
Essentially, yes, experiment. With gloves on!!!
ELKE BLODGETT email: eiblodge@freenet.edmonton.ab.ca
12 Grantham Place
St. Albert, AB T8N 0W8
403 (458-3445); 403 (727-2395)
On Tue, 2 Apr 1996, Cindy P Russell wrote:
> ----------------------------Original message----------------------------
>
> Hi to all. I have another question for ya'll. I have a student who
> wants to color clays with stains then inlay them into a white clay body.
> I have seen pictures of this being done but do not know what amounts to
> add to the base clay. Do we experiment and find the correct amounts or
> can someone give me a starting point.
>
> Thanks in advance.
>
> Cindy Russell
> Stratford High School
> Stratford, Texas
> Crussel@tenet.edu
>
Bill Buckner on tue 2 apr 96
Cindy et al:
Unfortunately, you are going to have to experiment. The amount of color
is going to be determined by 1. the clay body, 2. the oxide or stain
(each one varies in its coloring strength), and 3. your taste.
Here are some pointers I gleaned from colored clay experimenting I did a
couple of years ago:
1. White clay is necessary for brighter colors. Gray or buff firing
clays can be colored, but one gets very earthy (usually muddy) colors.
2. Most colors are muddied by reduction firing. However, a few colors
can withstand reduction and come through with nice color.
3. Using both raw oxides and Mason stains, I found I needed to add from
2% to 20% of the colorant to the body to get the "proper" colors.
4. If you can find the _Penland_Book_of_Pottery_, or Paulus Behrenson's
_Finding_Ones_Way_with_Clay_, (both published in the early '70's) they
both have sections on making and using colored clay (Jane Peiser's work
is in the Penland book).
-Bill
Bill Buckner e-mail: bbuckner@gsu.edu
Georgia State University http://www.gsu.edu/~couwbb
SANDRA@icicb.nci.nih.gov on tue 2 apr 96
Cindy,
There's a great video on the subject of colored clays by Virginia
Cartwright. She gives proportions and a demonstration of how to do
inlay, etc. I believe the Potter's Shop has this tape on their book list. If
you plan to do this again, it is well worth purchasing to show to future
classes.
Sandy Dwiggins
Axner on wed 3 apr 96
Dear Cindy,
I have used Mason Stains to color Porcelain before. I used one level
teaspoon of stain in with each 100 grams of wet clay. If you make a dish
of the clay, put the powder in the dish and add enough water to make a
slurry. Then wedge the color into the clay. I had to use more stain for
pink, and less for black, but the rest worked with this mix.
Hope this helps.
Judy at Axner
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