Margaret Barber on fri 2 nov 07
I would like to try to formulate an ash glaze that would mature at ^6. =
I
was given a loose recipe that called for =BD ash, =BD clay and enough =
frit to
bring it to ^6=85however, I don=92t know enough about frits to know =
whether that
means 1% or 15%...any suggestions?? I have Frit #3124, #3134, and #3195 =
in
my glaze =93pantry=94, so I=92d rather use what I have on hand. I also =
am willing
to experiment with different clays and and ash and have at my disposal =
Red
Art, Apache, and Kentucky Ball Clays;...bone ash and wood ash (oak, that =
has
been washed) I=92m sure some one of you has experience working with =
this kind
of thing. You guys have helped me out before!! =20
In the South, anxiously awaiting Summer--haha
Thanks in advance, Margaret=20
Dannon Rhudy on fri 2 nov 07
Margaret said:
.......I would like to try to formulate an ash glaze that would mature at
^6. ..........
Here is a Val Cushing cone 6 ash glaze
VC G 4 - Cone 5-6
50 Wood ash
20 Gerstley Borate or Substitute (there are several)
12 Whiting
8 EPK
10 Silica
Golden brown; nice runs, rivulets. For other colors, try
various oxides or carbonates (cobalt, iron, etc)
Bob Johnson on fri 2 nov 07
Margaret: Are you working in oxidation or reduction? I would be happy to=
share some ^6 reduction ash glaze recipes that involve frits---with you or=
anyone else---in exchange for some feedback on any experiments you might do=
with them.
Bob
At 11/2/2007 10:52 AM, you wrote:
>I would like to try to formulate an ash glaze that would mature at ^6. I
>was given a loose recipe that called for =BD ash, =BD clay and enough frit=
to
>bring it to ^6=85however, I don=92t know enough about frits to know whether=
that
>means 1% or 15%...any suggestions?? I have Frit #3124, #3134, and #3195 in
>my glaze =93pantry=94, so I=92d rather use what I have on hand. I also am=
willing
>to experiment with different clays and and ash and have at my disposal Red
>Art, Apache, and Kentucky Ball Clays;...bone ash and wood ash (oak, that=
has
>been washed) I=92m sure some one of you has experience working with this=
kind
>of thing. You guys have helped me out before!! =20
>
>In the South, anxiously awaiting Summer--haha
>
>Thanks in advance, Margaret=20
Mark Issenberg on sat 3 nov 07
Margaret,, try all the materials you.. Try them in different combinations,,
do tests,, I like small bowls for ash glaze tests..
I dont wash ash , just what I do ,, I dont need to add another step in
glazing. I like all the good yuck in the ash,,
I am firing today.. I have 3 tests in the kiln,, I like to test,,
If you want some cullet /glass I have lots of it. That really makes glazes
runnnnn
Mark
Lookout Mountain Pottery
Rising Fawn Georgia
************************************** See what's new at http://www.aol.com
Margaret Barber on sat 3 nov 07
Bob and Dannon,
Thanks for the suggestion of the Val Cushing recipe. Bob, I'm firing ^6
electric, oxidation of course, but I appreciate the offer of recipe sharing.
I'd love to help out and test some, but you probably wanted reduction
firing. I'll give the Cushing recipe a try. I noticed that the Cushing
recipe doesn't have frit; if someone would help me a bit.what exactly would
a frit do to adjust a glaze to a firing range of ^6? Sorry to sound
ignorant.
Thanks in advance,
Margaret, where it was beautiful again today!
Dannon Rhudy on sun 4 nov 07
The Cushing recipe has Gerstley Borate; it does
not need a frit. If you sub something else for the
Gerstley, it will probably be mostly frit, whatever
it's called.
I've never noticed that ash glazes care whether
they're fired reduction or oxidation. They behave
the same, though the color may vary. Do some
testing, don't worry, you'll get interesting results.
Ash glazes are best sprayed on, in my opinion.
regards
Dannon Rhudy
Ron Roy on sun 4 nov 07
Hi Margaret,
20% of 3134 would be a good place to start - it has the advantage of not
having any alumina in it - that means you can have more raw clay in the
recipe to help keep the glazes stirred.
RR
>I would like to try to formulate an ash glaze that would mature at ^6. I
>was given a loose recipe that called for =BD ash, =BD clay and enough frit=
to
>bring it to ^6=85however, I don=92t know enough about frits to know whether=
that
>means 1% or 15%...any suggestions?? I have Frit #3124, #3134, and #3195 in
>my glaze =93pantry=94, so I=92d rather use what I have on hand. I also am =
willing
>to experiment with different clays and and ash and have at my disposal Red
>Art, Apache, and Kentucky Ball Clays;...bone ash and wood ash (oak, that ha=
s
>been washed) I=92m sure some one of you has experience working with this k=
ind
>of thing. You guys have helped me out before!!
>
>In the South, anxiously awaiting Summer--haha
>
>Thanks in advance, Margaret
Ron Roy
RR#4
15084 Little Lake Road
Brighton, Ontario
Canada
K0K 1H0
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