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copper luster coagulation

updated wed 21 jan 98

 

Byzoque on sun 18 jan 98

Does anyone know how to get around this problem? I've been using Hanover's
liquid bright copper luster and for the past year or so it's been coagulated
in the bottle. I want to airbrush with it. Any suggestions?

There's a red copper luster by a different company, the color's similar but
not as good. I'm stumped.

Thanks for your help.

Sara

Paul Jay on mon 19 jan 98

Sara
I use Standard Ceramic's Lustures and they have a "medium" that one can buy to
thin and clean brushes in. Contact Hanover, they probably have the same
thing. Be careful! Everyone on Clayart talks about toxicity in regular glazes,
I understand many lusture formulas have mercury in them!

Byzoque wrote:

> ----------------------------Original message----------------------------
> Does anyone know how to get around this problem? I've been using Hanover's
> liquid bright copper luster and for the past year or so it's been coagulated
> in the bottle. I want to airbrush with it. Any suggestions?
>
> There's a red copper luster by a different company, the color's similar but
> not as good. I'm stumped.
>
> Thanks for your help.
>
> Sara

Richard Harris on tue 20 jan 98

The "medium" might also be referred to as gold essence by your supplier,
and is sort of a clear brush cleaner and thinner. I personally avoid the
Hanovia brand, finding it's fumes are much worse than the Duncan brand.
Also, the Duncan seems to do a smoother job somehow.
Michelle

-----------------------
> I use Standard Ceramic's Lustures and they have a "medium" that one can buy to
> thin and clean brushes in. Contact Hanover, they probably have the same
> thing.
-------
> > Does anyone know how to get around this problem? I've been using Hanover's
> > liquid bright copper luster and for the past year or so it's been coagulated
> > in the bottle.

Tim Stowell on tue 20 jan 98

When we used lustre's there was a product called lustre "medium" or
"extender" - it was either made by Duncan or Hanovia. We sometimes used
to thin down the gold. Be careful spraying the lustre's contain organic
solvents which are toxic - always wear a respirator with them.

Tim

Tim Stowell Gerard Stowell Pottery
Stacey Gerard 290 River Street
tstwll@juno.com Troy, NY 12180
(518)272-0983