ranmcc on fri 2 aug 02
Are there any Fake Ash Cone 6 Glazes recipes out there would appreciate any
help.
Randy
Belinda Willis on sun 4 aug 02
Glaze name: Zakin=92s GK ash
Cone: 5 - 6
Surface texture: ash runny
Date: 7/19/95
Recipe: Percent Batch
Ferro frit 3124 18.2 18.18
Magnesium carbonate 7.1 7.07
Nepheline syenite 10.1 10.10
Strontium carbonate 11.1 11.11
Spodumene 15.2 15.15
EPK 10.1 10.10
Whiting 13.1 13.13
Wood ash 15.2 15.15
Totals: 100.0 % 99.99 g
Also add:
Opax 12.1 12.12
Bentonite 2.0 2.02
Comments:
Use unwashed fireplace ash. Doesn=92t add to 100 because of the
strontium/barium substitution, the bentonite, and the ash. This may
be closer to cone 5 than cone 6 but seems to work over a range of a
couple cones. This is Zakin=92s GK base with 15% unwashed, mixed
fireplace ashes, with strontium substituted for barium and superpax
for opax. By itself over porcelain, the glaze is not particularly
interesting. But other glazes on top of it run and drip and blend
together nicely. I=92ve found that if I glaze the lower 2/3 or 3/4 of a
pot with a well-behaved glossy glaze, brush a coat of this ZGK ash
glaze on the top 1/3 or so and then brush or dip some third glaze on
top of the ash glaze, I get a nice pattern of runs that don=92t go off
the bottom of the pot onto the kiln shelf (usually). Different glazes
give different kinds of runs and bands of different glazes are
interesting too. The few times I tried a matte glaze on the bottom,
the pots cracked. Could have been coincidence. But I=92ve been sticking
with glossy glazes on the bottom since then.
submitted by: Janet Price e-mail: jprice@kzoo.edu
Felix on sun 4 aug 02
Randy,
Two ash glazes were posted in the list by Mike Bailey from Bath Potters'
Supplies (UK). Hope they help.
Felix
Celebration, FL (USA)
--------------------------
BP26S Light green 'ash' glaze. The glaze is typically low in silica and
high in the alkaline earths - calcium and magnesia, and of the type that
has a shiny glassy melt within which satiny matt crystals develop.
Because it's used by electric kiln potters the light green colour is
given by copper carbonate. If to be used in a reduction firing one would
probably want to take out the copper and put in a few percent of iron
oxide.
BP26S Light green 'ash' glaze. Cone 8
Potash feldspar 40.0
China clay 20.0
Dolomite 18.0
Talc 8.0
Whiting 5.0
Zinc oxide 4.0
Quartz or flint 5.0
Copper carb. 1.0
Recipe for a synthetic wood ash.
Nepheline syenite 10
F3110 (a high soda frit) 8
Bone ash 6
Dolomite 20
Talc 5
Whiting 37
Zinc oxide 2
Bentonite 3
Soda ash 4
Titannium dioxide 2
Black iron oxide 3
The rationale behind this concoction is that it simulates a wood ash by
providing a glaze ingredient that's low in alumina & silica but high in
calcium with a combination of other fluxes.
Hope these are of some interest,
Best regards, Mike Bailey.
--
Mike Bailey,
Bath Potters' Supplies.
----- Original Message -----
From: ranmcc
Sent: Friday, August 02, 2002 7:54 AM
Subject: Fake Ash at Cone 6?
> Are there any Fake Ash Cone 6 Glazes recipes out there would appreciate
any
> help.
>
>
> Randy
>
ranmcc on sun 4 aug 02
Felix , thanks alot, appreciate it.
----- Original Message -----
From: "Felix"
To:
Sent: Sunday, August 04, 2002 12:13 PM
Subject: Re: Fake Ash at Cone 6?
> Randy,
>
> Two ash glazes were posted in the list by Mike Bailey from Bath Potters'
> Supplies (UK). Hope they help.
>
> Felix
> Celebration, FL (USA)
> --------------------------
> BP26S Light green 'ash' glaze. The glaze is typically low in silica and
> high in the alkaline earths - calcium and magnesia, and of the type that
> has a shiny glassy melt within which satiny matt crystals develop.
> Because it's used by electric kiln potters the light green colour is
> given by copper carbonate. If to be used in a reduction firing one would
> probably want to take out the copper and put in a few percent of iron
> oxide.
>
> BP26S Light green 'ash' glaze. Cone 8
>
> Potash feldspar 40.0
> China clay 20.0
> Dolomite 18.0
> Talc 8.0
> Whiting 5.0
> Zinc oxide 4.0
> Quartz or flint 5.0
> Copper carb. 1.0
>
> Recipe for a synthetic wood ash.
>
> Nepheline syenite 10
> F3110 (a high soda frit) 8
> Bone ash 6
> Dolomite 20
> Talc 5
> Whiting 37
> Zinc oxide 2
> Bentonite 3
> Soda ash 4
>
> Titannium dioxide 2
> Black iron oxide 3
>
> The rationale behind this concoction is that it simulates a wood ash by
> providing a glaze ingredient that's low in alumina & silica but high in
> calcium with a combination of other fluxes.
> Hope these are of some interest,
>
> Best regards, Mike Bailey.
> --
> Mike Bailey,
> Bath Potters' Supplies.
>
>
>
> ----- Original Message -----
> From: ranmcc
> Sent: Friday, August 02, 2002 7:54 AM
> Subject: Fake Ash at Cone 6?
>
>
> > Are there any Fake Ash Cone 6 Glazes recipes out there would appreciate
> any
> > help.
> >
> >
> > Randy
> >
>
>
____________________________________________________________________________
__
> Send postings to clayart@lsv.ceramics.org
>
> You may look at the archives for the list or change your subscription
> settings from http://www.ceramics.org/clayart/
>
> Moderator of the list is Mel Jacobson who may be reached at
melpots@pclink.com.
>
Ababi on mon 5 aug 02
The glaze I made in the computer is based on a glaze called "nice ash" tha=
t I adjusted
to ^6
I found the origianal in the recipes book from Penland school. I made it k=
now and did
not test it. Please see the given colorants as a part of the recipe as the=
se are
materials that might be in ash. I never analised my ash, so I decided to a=
dd them.
Means the colorant you add will be above the 100% of the recipe!
FAKE ASH ^6
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Cone 6 1222 deg.C. -
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
FRIT 3110 53.00
TALC Nital 8.00
Bone Ash 6.00
EPK Kaolin 21.00
FRIT 3134 11.00
Manganese Dioxide 0.50
Red Iron Oxide 0.50
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Seger Weight%
KNO 0.410 11.00%
CaO 0.425 9.88%
MgO 0.150 2.51%
Al2O3 0.243 10.27% The Al2O3 is prety low to make it runny
P2O5 0.049 2.90%
B2O3 0.141 4.07%
SiO2 2.337 58.18%
TiO2 0.002 0.08%
K2O 0.035 1.35%
Na2O 0.376 9.65%
MnO 0.0144 0.42%
Al:Si 9.61
Expan. 9.02
ST 321.59
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Clay Body white to bufft
Status Untested
If it does ot run enough decrease the kaolin.
I used big amount of frit to be allow to use a lot of kaoiln for better su=
spension and
easer way to remove, in order to make it runnier
Ababi Sharon
Glaze addict
Kibbutz Shoval Israel
ababisha@shoval.org.il
http://members4.clubphoto.com/ababi306910/
http://www.milkywayceramics.com/cgallery/asharon.htm
---------- Original Message ----------
>Glaze name: Zakin=92s GK ash
>Cone: 5 - 6
>Surface texture: ash runny
>Date: 7/19/95
>Recipe: Percent Batch
>Ferro frit 3124 18.2 18.18
>Magnesium carbonate 7.1 7.07
>Nepheline syenite 10.1 10.10
>Strontium carbonate 11.1 11.11
>Spodumene 15.2 15.15
>EPK 10.1 10.10
>Whiting 13.1 13.13
>Wood ash 15.2 15.15
>Totals: 100.0 % 99.99 g
>Also add:
>Opax 12.1 12.12
>Bentonite 2.0 2.02
>Comments:
>Use unwashed fireplace ash. Doesn=92t add to 100 because of the
>strontium/barium substitution, the bentonite, and the ash. This may
>be closer to cone 5 than cone 6 but seems to work over a range of a
>couple cones. This is Zakin=92s GK base with 15% unwashed, mixed
>fireplace ashes, with strontium substituted for barium and superpax
>for opax. By itself over porcelain, the glaze is not particularly
>interesting. But other glazes on top of it run and drip and blend
>together nicely. I=92ve found that if I glaze the lower 2/3 or 3/4 of a
>pot with a well-behaved glossy glaze, brush a coat of this ZGK ash
>glaze on the top 1/3 or so and then brush or dip some third glaze on
>top of the ash glaze, I get a nice pattern of runs that don=92t go off
>the bottom of the pot onto the kiln shelf (usually). Different glazes
>give different kinds of runs and bands of different glazes are
>interesting too. The few times I tried a matte glaze on the bottom,
>the pots cracked. Could have been coincidence. But I=92ve been sticking
>with glossy glazes on the bottom since then.
>submitted by: Janet Price e-mail: jprice@kzoo.edu
>_________________________________________________________________________=
_____
>Send postings to clayart@lsv.ceramics.org
>You may look at the archives for the list or change your subscription
>settings from http://www.ceramics.org/clayart/
>Moderator of the list is Mel Jacobson who may be reached at melpots@pclin=
k.com.
Belinda Willis on tue 6 aug 02
submitted by: Suzanne Fuqua
Date: 1/13/96
Glaze name: Wood Ash Look
Cone: 6
Recipe: Percent Batch
Ferro frit 3195 46.0 46.00
Whiting 34.0 34.00
EPK 20.0 20.00
Totals: 100.0 % 100.00
Comments:
I have a recipe for a fake wood ash at cone 6 oxidation. It does
run in those rivulets.
I added 3% copper carbonate. I am sure some
other colorants would be worth a try.
Ron Roy on wed 7 aug 02
Just in case anyone is thinking of using this glaze next to food - it is
very unstable and will change colour in use and degrade over time because
of leaching from acidic food - try a slice of lemon on it over night at
room temperature and see for your self.
You would have to add 40 silica (glaze total 140.0) to even get near the
point where it would start to be a functional glaze. And it would not look
like an ash glaze of course.
RR
>Glaze name: Wood Ash Look
>Cone: 6
>
>Recipe: Percent Batch
>Ferro frit 3195 46.0 46.00
>Whiting 34.0 34.00
>EPK 20.0 20.00
>Totals: 100.0 % 100.00
>
>Comments:
>I have a recipe for a fake wood ash at cone 6 oxidation. It does
>run in those rivulets.
>
>I added 3% copper carbonate. I am sure some
>other colorants would be worth a try.
Ron Roy
RR#4
15084 Little Lake Road
Brighton, Ontario
Canada
K0K 1H0
Phone: 613-475-9544
Fax: 613-475-3513
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