Chris and Nissa on mon 25 mar 02
I am going to test following recipe from archives without Gerstly B. and
subbed 3124 one for one in Insight. How close do you try to match recipes?
With this small amt. of GB it might be this easy to eliminate..any
suggestions or comments?
Leather ^6
21 Dolomite
10 GB (subbing 3124)
9 Spodumene
5 Wollastonite
27 Custer
12 Neph Sy
16 Kaolin (#6 Tile)
Si:Al 4.46 with GB 4.75 w/3124
Exp 7.84 " 7.65 "
Thank you,
Chris Koivisto
Ababi on mon 25 mar 02
hi!
I don't know why you choose frit 3124 as a substitute to GB but here
are some possibilities:
LEATHER ^6 A
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Cone 6 1222 deg.C. -
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Dolomite 24.40
Cadycal (California) 6.00
SPODUMENE 9.80
Wollastonite 5.80
Custer feldspar 27.90
EPK Kaolin 20.00
FRIT 3110 5.50
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Seger Weight%
KNO 0.140 5.67%
CaO 0.541 15.52%
MgO 0.260 5.36%
Li2O 0.060 0.91%
Al2O3 0.351 18.32%
B2O3 0.104 3.70%
SiO2 1.639 50.42%
TiO2 0.002 0.09%
K2O 0.075 3.63%
Na2O 0.064 2.04%
Al:Si 4.67
Expan. 7.56
ST 393.84
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
LEATHER ^6 B
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Cone 6 1222 deg.C. -
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Dolomite 23.86
Laguna Borate 11.86
SPODUMENE 10.23
Wollastonite 5.68
Custer feldspar 30.68
EPK Kaolin 16.68
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Seger Weight%
KNO 0.135 5.74%
CaO 0.539 15.77%
MgO 0.265 5.58%
Li2O 0.062 0.96%
Al2O3 0.348 18.52%
B2O3 0.109 3.95%
SiO2 1.575 49.40%
TiO2 0.002 0.08%
K2O 0.082 4.04%
Na2O 0.052 1.70%
Al:Si 4.52
Expan. 7.56
ST 395.20
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
LEATHER ^6 C
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Cone 6 1222 deg.C. -
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Dolomite 27.34
FRIT 3134 14.56
SPODUMENE 9.95
Wollastonite 4.27
Custer feldspar 21.57
EPK Kaolin 25.82
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Seger Weight%
KNO 0.127 5.10%
CaO 0.549 16.41%
MgO 0.268 5.76%
Li2O 0.056 0.89%
Al2O3 0.344 18.70%
B2O3 0.105 3.91%
SiO2 1.533 49.12%
TiO2 0.003 0.11%
K2O 0.052 2.59%
Na2O 0.076 2.51%
Al:Si 4.45
Expan. 7.56
ST 397.41
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Comment: i go to eat the artichokes , before they will be too cold
Ababi Sharon
Kibbutz Shoval- Israel
Going deeply into glazing
ababisha@shoval.org.il
http://members4.clubphoto.com/ababi306910/
http://www.milkywayceramics.com/cgallery/asharon.htm
http://www.israelceramics.org/
---------- Original Message ----------
>I am going to test following recipe from archives without Gerstly B.
>and
>subbed 3124 one for one in Insight. How close do you try to match
>recipes?
>With this small amt. of GB it might be this easy to eliminate..any
>suggestions or comments?
>Leather ^6
>21 Dolomite
>10 GB (subbing 3124)
>9 Spodumene
>5 Wollastonite
>27 Custer
>12 Neph Sy
>16 Kaolin (#6 Tile)
>Si:Al 4.46 with GB 4.75 w/3124
>Exp 7.84 " 7.65 "
>Thank you,
>Chris Koivisto
>________________________________________________________________________
>______
>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.
Dupre Mr Marcy M on mon 25 mar 02
Chris,
I have not yet tried to sub with Frits 3124, or 3134. I DID use Gillespie
Borate on a one-for-one substitution, with excellent success. Being
somewhat of a radical, I tend to ignore the few hundredths of a percent in
calculating the glaze. Ask yourself, does the glaze really need to be that
exact? Or can I reasonably try this one out and use it if it proves to be a
reliable glaze?
I am going through these "growing pains," doing substitutions for Jordan
clay, Albany clay/slip, colemanite, gerstley borate, and a bunch of other
materials that are no longer economicaly available.
As always, TEST, TEST, TEST! I sometimes that I make pottery to sell only
to support my evil testing habits. :o)
Best of fortune. Play Dirty!
Tig
-----Original Message-----
From: Chris and Nissa [mailto:koivisto@USLINK.NET]
Sent: Monday, March 25, 2002 11:02 AM
To: CLAYART@LSV.CERAMICS.ORG
Subject: Leather ^6 GB Sub?
I am going to test following recipe from archives without Gerstly B. and
subbed 3124 one for one in Insight. How close do you try to match recipes?
With this small amt. of GB it might be this easy to eliminate..any
suggestions or comments?
Leather ^6
21 Dolomite
10 GB (subbing 3124)
9 Spodumene
5 Wollastonite
27 Custer
12 Neph Sy
16 Kaolin (#6 Tile)
Si:Al 4.46 with GB 4.75 w/3124
Exp 7.84 " 7.65 "
Thank you,
Chris Koivisto
____________________________________________________________________________
__
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.
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