Autumn Downey on sat 11 feb 12
I have ordered Ian Currie's Revealing glazes book but don't expect it
before I want to do a grid on the following glaze.
I'm wondering if anyone who has been using his method would mind
answering a query that I have. (Have got a good bit of info from the
web site and thought I knew - but am stuck on the following:)
Do I consider feldspar, whiting, GB, zinc and talc all to be fluxes?
(and copper carbonate as a colourant.)
What do I do about the ball clay, when the grid makes use of EPK? Would
I use ball clay instead?
I know the glaze (which runs or falls off pots according to those who
have been using it) could be improved with more clay but was curious to
try a grid anyway, just to have some surrounding information. Some
people like that the glaze moves. I got a newer analysis for GB and it
might be the reason this somewhat runny glaze got runnier.
Thanks for suggestions about clay!
Autumn Downey (back after a long absence - glad you are still there.)
GB Turquoise
CUSTER FELDSPAR 2100
FLINT 1150
WHITING 150
GERSTLEY BORATE '12 850
BALL CLAY 150
ZINC OXIDE 400
TALC 200
COPPER CARBONATE 150
John Post on sun 12 feb 12
Hi Autumn,
Here is a link to the ingredients you should use in each corner of the
grid.
http://cl.ly/1B3J230X013b0g1Y3U0z
I entered your data at this page...
http://ian.currie.to/cgi-bin/ian_calculation.html
Instead of using Kaolin, simply substitute Ball Clay when you make the
glazes.
Copper Carb is entered as a colorant.
John Post
Sterling Heights, Michigan
http://www.johnpost.us
Follow me on Twitter
https://twitter.com/UCSArtTeacher
On Feb 12, 2012, at 12:17 AM, Autumn Downey wrote:
> I have ordered Ian Currie's Revealing glazes book but don't expect it
> before I want to do a grid on the following glaze.
> I'm wondering if anyone who has been using his method would mind
> answering a query that I have. (Have got a good bit of info from the
> web site and thought I knew - but am stuck on the following:)
>
> Do I consider feldspar, whiting, GB, zinc and talc all to be fluxes?
> (and copper carbonate as a colourant.)
> What do I do about the ball clay, when the grid makes use of EPK?
> Would
> I use ball clay instead?
>
> I know the glaze (which runs or falls off pots according to those who
> have been using it) could be improved with more clay but was curious
> to
> try a grid anyway, just to have some surrounding information. Some
> people like that the glaze moves. I got a newer analysis for GB and
> it
> might be the reason this somewhat runny glaze got runnier.
>
> Thanks for suggestions about clay!
>
> Autumn Downey (back after a long absence - glad you are still there.)
>
>
> GB Turquoise
>
> CUSTER FELDSPAR 2100
> FLINT 1150
> WHITING 150
> GERSTLEY BORATE '12 850
> BALL CLAY 150
> ZINC OXIDE 400
> TALC 200
> COPPER CARBONATE 150
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