David Hendley on tue 13 jan 04
I think the best way to get rid of waste glaze is add it back to the
mix the next time you make clay. I just add the odd bits of glaze
tests and unused glazes to my Bluebird mixer along with the water
and then put in my new clays.
A couple of cups of glaze per 100 pound batch of clay is completely
unnoticeable in the working qualities and fired color of the finished clay.
Even 2 cups of tenmoku glaze in 100 pounds of porcelain will not
change the fired color enough to notice.
The left-over glaze will be bound up in the claybody mix, and besides,
any chemicals from the glaze will be so diluted that they will be
insignificant.
This is for stoneware claybodies. If I had lead glazes around, which
of course I don't, I would not put them in my claybody.
David Hendley
david@farmpots.com
http://www.farmpots.com
----- Original Message -----
> All the duscussions on toxicity and glazes has brought to mind How we
remove
> the chemicals safely. We all worry about copper leaching, barium, lead,
> manganese chromium, etc. However, I don't recall seeing a discussion about
> how to get rid of glaze waste.
Chris Clyburn on tue 13 jan 04
All the duscussions on toxicity and glazes has brought to mind How we remove
the chemicals safely. We all worry about copper leaching, barium, lead,
manganese chromium, etc. However, I don't recall seeing a discussion about
how to get rid of glaze waste. I do realize that a lot of potters will make
a catch all waste glaze, but how many of us our guilty of rinsing our
brushes or spraying materials into the sink? What can we do about diposing
safely of these chemicals we all know are harmful?
Just a thought,
Chris Clyburn
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