Lili Krakowski on thu 18 oct 07
Sorry about all that. Kelly Johnston! I was not being negative! I was
suggesting you go attend a fabulous lifelong party! Geeeeez.
We learned about glaze materials by mixing a bit of each available--and
there as a large large glaze pantry--with a little water and putting it on
a test tile ,and firing it. We then selected a couple of materials and
made straight line blends. We then selected the most promising and so
on.....MEANWHILE we learned glaze calculation AND READ THE BOOKS! At that
time there were not many but we read them...learned what different
materials were supposed to do.
As there are actually few materials (although numbers of source for most)
one can read about them quite quickly.
There is I think no point in starting with a recipe and puddling around.
Because you will not be able to figure out which material did what.
Lili Krakowski
Be of good courage
Elizabeth Priddy on fri 19 oct 07
I would go about it this way if I were learning
about chemicals that burn up
since you have a kiln and able to make little pinch bowls of clay.
make as many little bowls as you have chemicals
about walnut size is sufficient
put one teaspoon of each chemical you have in its
own little bowl marked with a name of chemical in
underglaze or stain
fire the whole set to whatever cone your clay fires to
see what is in each cup
it would tell you a lot about what each chemical does
and does not do
It would tell you whether each one was a
flux
alumina
or
glassforming material
And then you go from there
If I kept chemicals around, I would do this anyhow, as it sounds interesting
But I don't keep a stock of raw chemicals, so
more fun for you.
If anyone does it, post pics.
E
Elizabeth Priddy
Beaufort, NC - USA
Natural Instincts Conference Information:
http://downtothepottershouse.com/NaturalInstincts.html
http://www.elizabethpriddy.com
http://www.flickr.com/photos/7973282@N03/
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Kelly Johnston on sun 21 oct 07
Thank-you both for your advice! It is a dance, and yes, it's always
good to learn the steps! I have been going back over my materials, and
the books I have available (more on order thru the library) and
attempting to work out what will do what. I like the little bowls
idea, and might invite other members of my pottery group to join me.
Nothing like a bit of company to motivate me to learn more.
Kelly in Emerald Australia
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