Paul Lewing on wed 25 apr 01
Kathy,
The zinc oxide and the barium carbonate might clump up a bit if it's
humid where you live, but the others should be fine.
Paul Lewing, Seattle
SCOX on thu 26 apr 01
hey Kathy, Are you making pots? hope you are. I think oxides will la=
st forever
and frits and gerstley do not seem to be effected by age. glad to know =
you are
still around your former studio mate Sue Cox
k.m.whipple@ATT.NET wrote:
> I have a fair amount of glaze chemicals that have been
> in storage for about 6 years. They were kept dry,in a
> shed, but have likely weathered a fair amount of heat
> and humidity. Does anyone know whether long storage of
> raw chemicals has any deleterious effects? I figure, the
> clays and stones will be ok, but what about things like
> oxides (zinc?!) and carbonates?
> Thanks,
>
> Kathy Whipple
> Moth Wings Pottery
> Brooker, Florida
>
> _______________________________________________________________________=
_______
> Send postings to clayart@lsv.ceramics.org
>
> You may look at the archives for the list or change your subscription
> settings from http://www.ceramics.org/clayart/
>
> Moderator of the list is Mel Jacobson who may be reached at melpots@pcl=
ink.com.
Ababi on thu 26 apr 01
When I started to work in ceramics, there were chemicals from a late cera=
mic
artist/potter in my kibbutz that passed away 25 years earlier.
Most of the materials were usable. My teacher offered me to test the glaz=
es
in small saucers the way we did,. Most of the chemical were fine, except
some old frits. In my opinion you have to try and use them for themselves=
=2E
To explain it better I give you an imagined glaze.
DESERT GREEN (imagined glaze)
kaolin...............................20
feldspar..........................36.2
wolostonite(from store)......10
Flint..................................5
chrome(from store) ..........2
Now whenever you make the recipes use the "store" materials the way you h=
ave
done in your test.
You can test them with new materials too, if you see that there are not =
any
difference >>> Hallelujah!
Ababi Sharon
ababisha@shoval.ardom.co.il
http://members4.clubphoto.com/ababi306910/
----- Original Message -----
From:
To:
Sent: Thursday, April 26, 2001 1:28 AM
Subject: old glaze chemicals
> I have a fair amount of glaze chemicals that have been
> in storage for about 6 years. They were kept dry,in a
> shed, but have likely weathered a fair amount of heat
> and humidity. Does anyone know whether long storage of
> raw chemicals has any deleterious effects? I figure, the
> clays and stones will be ok, but what about things like
> oxides (zinc?!) and carbonates?
> Thanks,
>
> Kathy Whipple
> Moth Wings Pottery
> Brooker, Florida
>
>
_________________________________________________________________________=
___
__
> Send postings to clayart@lsv.ceramics.org
>
> You may look at the archives for the list or change your subscription
> settings from http://www.ceramics.org/clayart/
>
> Moderator of the list is Mel Jacobson who may be reached at
melpots@pclink.com.
>
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