Ababi on fri 30 may 03
In Tue, 11 Dec 2001 10:23:48 -0800
Wrote snail about Albany slip glazes:
http://lsv.ceramics.org/scripts/wa.exe?A2=ind0112B&L=CLAYART&P=R14102
About one of the glazes You have written Snail, it was a gooey glaze- just for this
mysterious word I had to test it. (OK now I know what it is)
I decided to try and convert through Matrix some recipes to available materials. I
chose locals.
Remember Don Goodrich list for easy converting of the Albany slip.
I tested the Ox glazes:
I copy only the glaze and snail words according to this glaze:
========
>CASTLE ENGOBE 6^ ox/redux (my favorite)
> 7.95 Barium Carb
> 2.27 Lithium Carb
>13.64 Whiting
>25.00 Albany Slip
>22.73 F-4 feldspar
>28.41 OM-4 ball clay
>+
>13.64 Opax
> 2.27 Cobalt Carb
> 2.27 Manganese Diox
> 4.55 Rutile
>This is a mottled matte gooey looking grey glaze,
>but more stony that satiny. I like it best thick,
>but it will hide fine detail. Because of the clay
>content, I think it works best for one-shot firing,
>applied to leather-hard clay. I make no claims
>for food-safety, but it's spiffy on sculpture.
>Clear glaze applied over it in patterns will make
>cobalt-blue glossy streaky designs.
------------------------
If I would not trust Snail I would not even try it. it looks like would be too dry for ^6!
----------------------
Here is my version
CASTLE ENGOBE 6^ ABABI'S VERSION
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Cone 6 1222 deg.C. -
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
spodumen 11.30
Feldspar Soda F7 24.60
red clay (Creaton) 19.50
Calcium Carbonate 15.40
ultrox 12.30
strontium carbonate 5.10
ball clay AK 11.80
Cobalt Carbonate 2.00
Manganese Dioxide 2.00
Rutile 4.00
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Seger Weight%
KNO 0.181 3.89%
CaO 0.551 9.61%
MgO 0.042 0.52%
Li2O 0.104 0.97%
SrO 0.123 3.95%
Al2O3 0.512 16.23%
SiO2 2.724 50.94%
ZrO2 0.238 9.13%
TiO2 0.191 4.75%
K2O 0.039 1.15%
Na2O 0.142 2.74%
Al:Si 5.32
Expan. 7.23
ST 391.88
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
This is a matte dry smooth to touch glaze
brown gray look.
On my mottled ( with manganese) tinted paperclay the specks looked through the
glaze.
I believe that using more fluxing colorants will make it smoother perhaps 1 or 2 lithium
carbonate can be less rutile more copper or cobalt.
The next glaze:
===============
>BEANPOT BROWN GLOSS ^4-6
>87.5 Albany slip
>12.5 Neph Sy
> 1.0 Bentonite
>Very traditional-looking. I'm guessing it's
>probably foodsafe, too.
-------------------------------
BEANPOT BROWN GLOSS 1
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Cone 6 1222 deg.C. -
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
red clay (Creaton) 64.00
Feldspar Soda F7 20.00
Dolomite 8.00
Calcium Carbonate 4.00
Quartz 5.00
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Seger Weight%
KNO 0.314 6.11%
CaO 0.433 6.06%
MgO 0.253 2.54%
Al2O3 0.712 18.09%
SiO2 4.433 66.47%
TiO2 0.036 0.72%
K2O 0.156 3.66%
Na2O 0.158 2.45%
Al:Si 6.23
Expan. 6.73
ST 378.36
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
It is an "educational glaze, without any added colorants you get dark brown 'been pot".
Dark brown, very low in cost.
Wherever there was higher than 30% clay I used calcined clay.
===========
>OPAQUE CHOCOLATE MATTE ^6
>83.0 Albany Slip
>10.8 Lithium Carb
> 6.0 Rutile
> 0.2 RIO
>I have doubts about the food-safety of this one;
>seems like a lot of lithium to me. I'd save it
>for sculpture, personally.
----------
OPAQUE CHOCOLATE MATTE ^6 1
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Cone 6 1222 deg.C. -
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Lithium Carbonate 11.00
frit A 2120 1.00
red clay (Creaton) 66.00
talc Nital 5.00
Calcium Carbonate 8.00
Quartz 9.00
Rutile 6.40
Red Iron Oxide 0.21
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Seger Weight%
KNO 0.118 4.11%
CaO 0.270 5.92%
MgO 0.165 2.61%
Li2O 0.447 5.23%
Al2O3 0.362 14.42%
SiO2 2.529 59.47%
TiO2 0.264 8.26%
K2O 0.099 3.65%
Na2O 0.019 0.46%
Al:Si 6.99
Expan. 6.81
ST 386.74
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
I wonder why the good things are the bad things!
Fat -full food and lithium full glazes.
It is not for me to test it for foodsafe yet I will use it only outside of wares and give it
only to grown up students.
It is a beautiful brown beige with kind of specks- crystals that are happening only with
lithium glazes. You must be aware that this low expansion might cause shivering, I
hope I use the right term, I mean that the glaze might break of the ware. I will keep
these tests the way they are, because I I have understood correctly John and Ron, it
might happen letter on.
Anyway this is one of the few lithium glazes that I say : Go on it.
Another glaze I tested I am sorry to say I do not remember how it started might be my
own I tried to change the lithium carbonate into spodumen. A paraphrase on an old
American song:
THE YELLOW HILLS OF SHOVAL
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Cone 6 1220C
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
red clay (GRT) 57.00
frit 3110 20.00
spodumen 19.00
talc Nital 1.00
Calcium Carbonate 3.00
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Seger Weight%
KNO 0.402 7.18%
CaO 0.261 3.50%
MgO 0.107 1.04%
Li2O 0.230 1.64%
Al2O3 0.751 18.30%
B2O3 0.035 0.58%
SiO2 4.670 67.15%
TiO2 0.032 0.61%
K2O 0.158 3.56%
Na2O 0.244 3.62%
Al:Si 6.22
Expan. 10.17
ST 328.17
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
A more like the dark brown hills of .......
Does not fit my test. glossy dark brown
As an add, when you make a butterscotch glaze try and change the ball clay into red
clay for deeper yellow
The picture of the "Albany" glazes is not good. You cannot see the glossiness of the
glazes
The lithium rich glaze is more beige than yellow.
http://members4.clubphoto.com/ababi306910/981929/
A is the yellow hills B is opaque chocolate
C is gooey
And D is a bean pot for supper. To see this picture correctly you must put your
monitor upside down!
Sincerely
Ababi Sharon
Glaze addict
Kibbutz Shoval Israel
ababisha@shoval.org.il
http://members4.clubphoto.com/ababi306910/
http://www.israel-ceramics.org/membersGallery/personalpage.asp?MID=507
Ababi Sharon
Glaze addict
Kibbutz Shoval Israel
ababisha@shoval.org.il
http://members4.clubphoto.com/ababi306910/
http://www.israel-ceramics.org/membersGallery/personalpage.asp?MID=507
Bobbruch1@AOL.COM on sat 31 may 03
Ababi: I don't know what you discovered, and maybe it is different for a
"gooey glaze", but while I like the results of the Goddrich and Hendley Albany
subs in some glazes that use, I do not get the same glaze with the substitutes as
with Albany. I seem to get something similar, but not quite matching. In
fact, more of a "cousin" than a "sibling" in terms of match.
Bob Bruch
<<<a gooey glaze- just for this mysterious word I had to test it. (OK now I know
what it is) I decided to try and convert through Matrix some recipes to
available materials. I chose locals. Remember Don Goodrich list for easy converting
of the Albany slip. I tested the Ox glazes: I copy only the glaze and snail
words according to this glaze:
Ababi on sat 31 may 03
Hello Bob!
I am trying to 'sell myself' to Israeli potters. I am pretty virtual I believe to most of
them. I try to show people that by using a software you can reproduce an un existing
materials.
For me the earth of Albany is as real as the earth of the moon. To make it more
complicated I am not sure about the analysis of my red clay. I did not say that
Handley substitution looks like the Albany. I am mostly sure that when you substitute
using a software, with good meanings you very likely to get as close as possible to
the original material.
I tried once by the way, to make two recipes with the same analysis. The first I did
correctly the second I made bad - how - I think I used boric acid and borax and soda
ash instead of the insoluble materials and the expected bad result was achieved.
I will make you now a replacement for Albany slip. Please try it and tell me if it is good
for you I shall call it: Nonebany slip:
If you use a high amount, over 30% you better use it calcined. In this case you have to
recalculate the redart without the LOI - I was too lazy to do it for redart as I am not
using it.
NONEBANY SLIP
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Custer feldspar 9.34
RedArt Clay 68.15
talc Nytal 5.58
Calcium Carbonate 9.49
Flint 5.30
Alumina Hydrate 2.90
Red Iron Oxide 0.50
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Seger Weight%
KNO 0.219 4.62%
CaO 0.474 6.35%
MgO 0.307 2.95%
Al2O3 0.663 16.14%
SiO2 4.420 63.43%
TiO2 0.041 0.78%
K2O 0.179 4.02%
Na2O 0.041 0.60%
Al:Si 6.66
Expan. 6.58
ST 383.70
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
And:
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Cone deg.C. -
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Albany Slip Clay 100.0
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Seger Weight%
KNO 0.219 4.62%
CaO 0.474 6.35%
MgO 0.307 2.95%
Al2O3 0.663 16.14%
SiO2 4.420 63.43%
TiO2 0.041 0.78%
K2O 0.179 4.02%
Na2O 0.041 0.60%
Al:Si 6.66
Expan. 6.58
ST 383.70
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
I wish you better memories of old glazes!
( just to all of you: in each software the analysis might be slightly different) I used
Custer feldspar instead of soda feldspar after all it had to be something from "my real"
chemicals!
Ababi Sharon
Glaze addict
Kibbutz Shoval Israel
ababisha@shoval.org.il
http://members4.clubphoto.com/ababi306910/
http://www.israel-ceramics.org/membersGallery/personalpage.asp?MID=507
---------- Original Message ----------
>Ababi: I don't know what you discovered, and maybe it is different for a
>"gooey glaze", but while I like the results of the Goddrich and Hendley Albany
>subs in some glazes that use, I do not get the same glaze with the substitutes as
>with Albany. I seem to get something similar, but not quite matching. In
>fact, more of a "cousin" than a "sibling" in terms of match.
>Bob Bruch
><<<>a gooey glaze- just for this mysterious word I had to test it. (OK now I know
>what it is) I decided to try and convert through Matrix some recipes to
>available materials. I chose locals. Remember Don Goodrich list for easy converting
>of the Albany slip. I tested the Ox glazes: I copy only the glaze and snail
>words according to this glaze:
Bobbruch1@AOL.COM on sun 1 jun 03
<<moon. To make it more complicated I am not sure about the analysis of my red
clay. I did not say that Hendley substitution looks like the Albany.
The Hendley sub can produce + glaze results.
I will make you now a replacement for Albany slip. Please try it and tell me
if it is good for you I shall call it: Nonebany slip:
I appreciate it and I will try it in the near future.
If you use a high amount, over 30% you better use it calcined. In this case
you have to recalculate the redart without the LOI - I was too lazy to do it
for redart as I am not using it.
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