Ned Ludd on mon 25 nov 02
Carole Fox wrote
>Gene asked what is selling best....
>In my functional line- my biggest sellers are mugs and medium sized bowls.
>In my raku ware, I am selling lots of copper penny luster glaze.
>Carole Fox
>Elkton, MD
Hmmm... the copper penny luster raku glaze - wasn't it aired some
seasons ago on clayart, with reference to a lawsuit if I recall
aright, that it goes GREEN with time, under reoxidisation? And with
more time, from green it would change to black, if my understanding
of chemistry and the old British copper penny is any guide.
The Incredible Transforming Luster Pots: now you see them - now you don't.
:-(
*Unless.*
Unless you coated your raku lusterware with an anti-oxidant such as
acrylic polymer, to seal the surface from exposure to oxygen.
Um, you did... didn't you?
*Referencing a past clayart post from Marcia:
> I have an ongoing test in my back yards that is eight years old. The
> acylic LIquid polymer medium painted over the copper luster glaze did
> prevent oxidization. What more can I say.? I painted it over "Reynolds
> Wrap". The stripe where it was painted stayed coppery and the rest
> turned green.
> Marcia Selsor
> in Billings, Montana
good luck
Ned, who asks to be corrected if wrong on this one.
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