Hal Mc Whinnie on fri 5 sep 03
HALS RUTILE BLUE GLAZE
CONE 3-8
REDUCTION OR OXIDATION
BONE ASH 10.9
COLEMANITE 3.6
MAGBNESIUM CARB 3.6
WHITING
27
ZINC OXIDE 2.7
NEPHELINE SYENITE22
silica29
FOR BLUE COLOR ADD
COBALT.91
LIMENITE.91
MANGANES CARB5.5
RUTILE.91
Ababi on fri 5 sep 03
Hello Hal
If you are lucky I am the first to response...
HALS RUTILE BLUE
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Cone 6 1222 deg.C. -
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Bone Ash 10.90
Colemanite 3.60
Magnesium Carb Light 3.60
Calcium Carbonate 27.00
zinc oxide 2.70
Nepheline Syenite 22.00
silica 29.00
Cobalt Oxide 9.10
Ilimenite 9.10
Manganese Carbonate 0.50
Rutile 9.10
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Seger Weight%
KNO 0.088 3.40%
CaO 0.762 23.64%
MgO 0.085 1.90%
ZnO 0.064 2.90%
Al2O3 0.098 5.51%
P2O5 0.068 5.36%
B2O3 0.049 1.88%
SiO2 1.373 45.64%
TiO2 0.221 9.77%
K2O 0.021 1.09%
Na2O 0.068 2.32%
Al:Si 14.05
Expan. 8.57
ST 358.78
I made lately a very low in alumina and silica glaze on peruse. When I
will have slides of my recent works I shall explain it more.
Your glaze looks very strange- if I take ^6 as the middle the CaO is
very high and the rest are too low. How does the glaze looks like? Will
I not regret testing it ( After finishing my own 50 or so tests this
week)?
Ababi Sharon
Glaze addict
Kibbutz Shoval Israel
ababisha@shoval.org.il
http://members4.clubphoto.com/ababi306910
http://www.matrix2000.co.nz/Matrix%20Demo/Ababi.htm
-----Original Message-----
From: Clayart [mailto:CLAYART@LSV.CERAMICS.ORG] On Behalf Of Hal Mc
Whinnie
Sent: Friday, September 05, 2003 4:07 PM
To: CLAYART@LSV.CERAMICS.ORG
Subject: glaze for the week sept 8
HALS RUTILE BLUE GLAZE
CONE 3-8
REDUCTION OR OXIDATION
BONE ASH 10.9
COLEMANITE 3.6
MAGBNESIUM CARB 3.6
WHITING
27
ZINC OXIDE 2.7
NEPHELINE SYENITE22
silica29
FOR BLUE COLOR ADD
COBALT.91
LIMENITE.91
MANGANES CARB5.5
RUTILE.91
________________________________________________________________________
______
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John Hesselberth on fri 5 sep 03
Hi Hal,
Ababi is right that this glaze has a very unusual composition. It is
almost certainly very unstable and should not be used on functional
work without thorough testing. It also has a very high calculated
expansion coefficient and may craze on many clay bodies. You might
consider adding these points to your notes when you disseminate glazes
of this nature.
Regards,
John
On Friday, September 5, 2003, at 10:07 AM, Hal Mc Whinnie wrote:
> HALS RUTILE BLUE GLAZE
> CONE 3-8
> REDUCTION OR OXIDATION
>
> BONE ASH 10.9
> COLEMANITE 3.6
> MAGBNESIUM CARB 3.6
> WHITING
> 27
> ZINC OXIDE 2.7
> NEPHELINE SYENITE22
> silica29
> FOR BLUE COLOR ADD
> COBALT.91
> LIMENITE.91
> MANGANES CARB5.5
> RUTILE.91
>
> _______________________________________________________________________
> _______
> 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.
>
>
http://www.frogpondpottery.com
http://www.masteringglazes.com
Hal Mc Whinnie on sat 6 sep 03
for success this glazde should be tested, however most of my work is hand
built sculpture for the gareden and the effect of the glaze is perfect for what i
want
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