Hal Mc Whinnie on sat 11 oct 03
I am very please with the dialogue that we have started about glazes.
my glaze formulas are part of a collection of over 5,000 formulas collected
from potters over the years.
supposly they all work, at least for those who gave them to me.
glaze of week for oct 19 2003
maine spar 44
colemanite 28
wollensonite 20
a-3 spar 8
+
iron oxide 5
analysis
k20 0.15
na20 0.06
mago 0.04
cao 0.75
fe203 0.08
b2o3 0.44
al2o2 0.22
sio2 1.99
expansion 0.341
Tony Ferguson on sat 11 oct 03
Please list the cone number.
----- Original Message -----
From: "Hal Mc Whinnie"
To:
Sent: Saturday, October 11, 2003 8:51 AM
Subject: glaze of week for oct 10
> I am very please with the dialogue that we have started about glazes.
>
> my glaze formulas are part of a collection of over 5,000 formulas
collected
> from potters over the years.
>
> supposly they all work, at least for those who gave them to me.
>
> glaze of week for oct 19 2003
>
> maine spar 44
> colemanite 28
> wollensonite 20
> a-3 spar 8
> +
> iron oxide 5
>
> analysis
> k20 0.15
> na20 0.06
> mago 0.04
> cao 0.75
>
> fe203 0.08
> b2o3 0.44
> al2o2 0.22
> sio2 1.99
>
> expansion 0.341
>
>
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Ababi on sat 11 oct 03
Hello Hal
One of the best books of glazing is "glaze Projects of Behrens. Some of
the material- in the book are not available today.
When you send an old recipe you must use the formula with new materials.
It is not enough to say it works for the people that have sent them!
The reason this kind of thing annoying me in the next story:
When I joined the electronic world I tested about 10 "free of charge"
recipes. They were all for ^03.
I wrote to the site manager. I was told that they were not responsible
to the recipes and the results ( My words).
These days when I am pretty known as a glaze addict, I have done new
tests to the same glazes in ^6. This time - using the software. I
explained the person why these glazes were actually high fire glazes and
I must say - these "evil recipes" were removed.
There is no reason to break the heart of new testers!
I shall see the analysis because the materials are not clear:
GLAZE OF WEEK FOR OCT 10
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Cone 6 ? 1222 deg.C. ? -
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
frit 3195 53.40
frit 3110 11.70
EPK Kaolin 5.70
Wollastonite 10.30
Calcium Carbonate 11.10
Flint 6.40
talc NYtal 1.40
Red Iron Oxide 5.00
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Seger Weight%
KNO 0.210 5.47%
CaO 0.751 17.40%
MgO 0.039 0.65%
Al2O3 0.221 9.28%
B2O3 0.441 12.69%
SiO2 1.993 49.45%
K2O 0.007 0.28%
Na2O 0.203 5.20%
Al:Si 9.03
Expan. 8.26
ST 328.29
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
I am sure I can improve the suspension but it will take more work to do.
It looks interesting, kind of saturated CaO glaze at ^6 Probably not
stable because of the low Al:Si
Perhaps was made for lower cone. May be higher?
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: Saturday, October 11, 2003 3:52 PM
To: CLAYART@LSV.CERAMICS.ORG
Subject: glaze of week for oct 10
I am very please with the dialogue that we have started about glazes.
my glaze formulas are part of a collection of over 5,000 formulas
collected
from potters over the years.
supposly they all work, at least for those who gave them to me.
glaze of week for oct 19 2003
maine spar 44
colemanite 28
wollensonite 20
a-3 spar 8
+
iron oxide 5
analysis
k20 0.15
na20 0.06
mago 0.04
cao 0.75
fe203 0.08
b2o3 0.44
al2o2 0.22
sio2 1.99
expansion 0.341
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