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oxide binders

updated mon 30 sep 96

 

Barb Howe on sat 31 aug 96

Hi everybody,
I'm hoping some of you can help me with a problem I'm having. I use cobalt
carbonate in some brush decoration on one of my production lines. It looks
great when everything goes well, but it's very fragile when loading, etc.
What I mean is that the lightest touch will wipe off some of the design
which is very obvious even when it's fired. I'm convinced there must be
some kind of binder out there that will harden the oxide once it's dried.
I've tried laundry starch (liquid), gum arabic, hair spray and sugar - all
to no avail. Any suggestions? Something that would also improve the flow
would be a really nice bonus.

TIA
Barb
Fifth day of the heat wave - summer is finally here!
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Barb Howe
Clay Necessities
Fort McMurray, AB, Can
bhowe@ccinet.ab.ca

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Barb Howe
Clay Necessities
Fort McMurray, AB, Can
bhowe@ccinet.ab.ca

Patsy Catsos on sat 31 aug 96

I took a workshop with Seth Cardew this past spring. He mixes his oxides
with water and a small amount of slip (same clay as the body you are using).
This has worked well for me to improve the staying power of the oxide.
Works on leather hard, bone dry, bisque and even on-glaze decoration. It
does affect the color of the oxide a bit since my clay is a brown stoneware.
Worth a try?

Patsy Catsos
Cape Elizabeth, ME

Elca Branman on sat 31 aug 96

A drop of liquid dishwasher detergent can help with the flow...I can't
address the binder problem because I spend a lot of energy persuading my
customers that the smudged look is what they want..(joke) Elca Branman

Leona Stonebridge Arthen on mon 9 sep 96

At 8:09 AM 8/31/96, Barb Howe wrote:
I'm convinced there must be
>some kind of binder out there that will harden the oxide once it's dried.

How about corn syrup? I also use a slip made of the clay body and colored
with oxides.
Leona


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Leona Stonebridge Arthen
leona@arthen.ultranet.com
Wakefield, Massachusetts/USA