Du Cheval on thu 5 feb 98
Can anyone tell me what effect adding wood ashes to a commercial 06 glaze in
various proportions might have? Just curious and new to glazes. Thanks
bunches.
Jim Thomas
Marion Barnes-Schwartz. on fri 6 feb 98
Try it and see what happens. I don't know much about ^06. But I've added
ashes to stoneware glazes with some very interesting results, usually at least
20% of the glaze or more.
Marion
Jan Cartron on fri 6 feb 98
Wood Ash could lower the melt temperature and it will probably affect the
glaze color as well, but you're dealing with a lot of variables. I think you
should try it on test tiles. You might find something you really like.
Jan Cartron
Craig Martell on fri 6 feb 98
At 11:44 AM 2/5/98 EST, you wrote:
>----------------------------Original message----------------------------
>Can anyone tell me what effect adding wood ashes to a commercial 06 glaze in
>various proportions might have? Just curious and new to glazes. Thanks
>bunches.
Hi Jim:
It would be a minor miracle if you got any kind of an "ash glaze" effect
such as beading and running. Wood ash isn't very active even at cone 5 and
6. But you could make some test tiles and give it a whirl. You never know
what you'll find unless you do some tests. I'm not aware of anyone doing
anything with ash at cone 06 so I don't have any data for you about prior tests.
If you are thinking of using the results for functional pots, be aware that
you may change the glaze into a state of being less durable by adding the
ash. You don't know the composition of the glaze or the ash. If you are
just using it for decorative stuff, no need to worry.
regards, Craig Martell-Oregon
Du Cheval on sat 7 feb 98
>Try it and see what happens. I don't know much about ^06. But I've added
>ashes to stoneware glazes with some very interesting results, usually at
>least
>20% of the glaze or more.
>
>
I would think that adding up to 50% ash to an 06 glaze would raise the
maturation temp. I am going to try it as I always have lots and lots of wood
ash. I am sure that much depends on the basic glaze ingredients and the type
of ash.
Laura Conley on sat 7 feb 98
A few things adding wood ashes to an 06 might do: gradually increase the
maturity temperature, eventually cause the beading/cord effect seen in ash
glazes (this is due to the calcium), dilute the color.
Ash glazes by Tichane is a great book. You can make ash glazes at many
temperatures, perhaps not quite as low as 06, by combining ashes or calcium
(whiting, etc) with fluxes, and possibly some silica. Don't add too much
alumina - it prevents the cord effect.
Laura Conley
Boulder, CO
Du Cheval wrote:
> ----------------------------Original message----------------------------
> Can anyone tell me what effect adding wood ashes to a commercial 06 glaze in
> various proportions might have? Just curious and new to glazes. Thanks
> bunches.
>
> Jim Thomas
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