Barbara Kobler on fri 23 jan 04
Hi all. Can anyone provide help to:
1. reformulate this cone 04-06 glaze of Marc Leouthold's to no barium. It's that bright blue/purple one he uses a lot.
2. Keeping barium but getting it up to cone 5-6
Barium 43
lithium 5
neph sy 20
epk 20
silica 11
_______
copper 7
Any and all suggestions will be greatly appreciate.
Barbara Kobler http://www.claywoman.net
Ababi on sat 24 jan 04
Hi Barbara
You change the 100 barium into 75 strontium carbonate
This glaze will be better but not foodsafe because of the low firing and
the high copper.
BARIUM AWAY! ^04
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Cone 0 1060 deg.C. -
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
strontium carbonate 36.50
Lithium Carbonate 5.70
Nepheline Syenite 22.70
EPK Kaolin 22.70
silica 12.50
Copper Carbonate 7.00
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Seger Weight%
KNO 0.125 3.99%
CaO 0.008 0.19%
MgO 0.002 0.03%
Li2O 0.206 2.81%
SrO 0.660 31.23%
Al2O3 0.363 16.90%
SiO2 1.633 44.85%
K2O 0.030 1.27%
Na2O 0.096 2.71%
Al:Si 4.50
Expan. 8.48
ST 415.91
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Keep testing try to find better glazes!
Ababi Sharon
Glaze addict
Kibbutz Shoval Israel
ababisha@shoval.org.il
http://ababi.active.co.il
http://www.matrix2000.co.nz/Matrix%20Demo/Ababi.htm
-----Original Message-----
From: Clayart [mailto:CLAYART@LSV.CERAMICS.ORG] On Behalf Of Barbara
Kobler
Sent: Friday, January 23, 2004 5:46 AM
To: CLAYART@LSV.CERAMICS.ORG
Subject: Convert Glaze to No Barium
Hi all. Can anyone provide help to:
1. reformulate this cone 04-06 glaze of Marc Leouthold's to no barium.
It's that bright blue/purple one he uses a lot.
2. Keeping barium but getting it up to cone 5-6
Barium 43
lithium 5
neph sy 20
epk 20
silica 11
_______
copper 7
Any and all suggestions will be greatly appreciate.
Barbara Kobler http://www.claywoman.net
________________________________________________________________________
______
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.
| |
|
