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proper disposal of glazes,

updated wed 20 sep 00

 

Mudnjoy@AOL.COM on tue 19 sep 00

testing studio dirt,&burgandy to pink glaze

In a message dated 9/14/00 8:37:32 PM US Mountain Standard Time,
annsart@IMPULSE.NET writes:

> One way to get rid of glazes is to put them into a bisk pot, allow them to
> > dry out and, fire them to their maturity, or nearly. They are then a
glass
> > and easily disposed of.
> > Bill

What would concern me is if some freak accident in the kiln caused a leak
in the bisque pot FULL of liquid glaze. The thought of all that liquid
glass in the kiln is enough to keep me awake at night. Yips.
I always save those small amounts of glaze that settle to the bottom and
test them. Some are real treasures that I save to glaze my small magnets or
pins with lizard impressions. What do I do when someone wants more of that
color I explain, "I recycle and reuse the settling glaze chemicals from my
glazing rinse water, instead of dumping them in the environment, although I
often come up with similar colors once they are gone they are gone." I hope
the fact that I make an effort not to pollute eases their disappointment
about the glaze.
One of the local art schools was busted for dumping glaze chemicals down
the drains. Seems that they used mostly Gerstley Borate to glaze children's
low fire pottery and Waste Water management traced the contamination to them.
So easily avoidable.
Along this same line of no waste, earlier this year I mopped out the
studio floor corners and seldom used shelves. I rinsed my mop in one bucket
to get out the most dirt then in a cleaner bucket. Same with my wiping rags.
Just for fun I ran the settled dirt through a screen & tested it as a stain
and under clear glaze. Alone it tests out as a golden light brown just a tad
darker than rutile. Under clear glaze it's a delightful pale subtle green,
rather like a celedon. A keeper. I've found many scrap glazes are gray or
brownish but come alive under clear glaze.

I checked my studio notes about last week's thread on a burgandy/purple
glaze turning pink. In the Archives that glaze is listed as Kemp 17. I
still have a dab of Kemp 17 that fired pink for me. I'm gonna blast it
threw the studio blender for a while and retest. Thanks to the folks that
provided the information about finer grinding ground chemicals influencing
glazes color. I'm gonna take every glaze I don't like and blast it threw the
blender and see if they change.

Joy in Tucson Record hot weather here.

URL: http://holdreadstudios.hypermart.net/
E-mail: Mudnjoy@aol.com

"Experience is what you get when you don't get what you want."