Gabriel Tejeda on fri 3 jan 03
I am new to ceramics(one year of experience), I recently got INSIGHT =
5x glazing program and I wonder where I could get more Unity Formula =
Limits or Mole %'s and what do you think of using them? I am restricted =
to cone 02 and in search of the perfect glossy transparent formula for =
colors. If anyone can help me I will really appreciate it.
Here is a cone 02 shiny clear recipe that I made. It works with all =
colors, but it blisters when I use it on tall ceramic pieces that are =
closer to the burners of my oxidation gas kiln. Anybody is welcome to =
suggest what they thing in how to fix this problem. I will try anything =
and will tell you how it went.
Thankyou for your time!
Gabriel Tejeda=20
gabriel.tejeda@davidbrooks.com =20
Ghost Recipe
=3D=3D=3D=3D=3D=3D=3D=3D=3D
Frit 3292 40.00 42.33%
FRIT 266 20.00 21.16%
EPK KAOLIN.......... 10.00 10.58%
WOLLASTONITE 10.00 10.58%
STRONTIUM CARBONATE 7.50 7.94%
DOLOMITE 4.00 4.23%
BENTONITE........... 2.50 2.65%
CMC GUM............. 0.50 0.53%
=3D=3D=3D=3D=3D=3D=3D=3D
total: 94.50
=20
Unity Analysis Mole%
CaO 0.50* 10.92%w 12.92%m
Li2O 0.02* 0.20 0.45
MgO 0.09* 1.41 2.33
K2O 0.05* 1.67 1.17
Na2O 0.14* 3.33 3.57
SrO 0.21* 8.36 5.35
TiO2 0.00 0.05 0.04
Al2O3 0.33 13.22 8.60
B2O3 0.37 9.89 9.44
P2O5 0.00 0.03 0.01
SiO2 2.17 50.74 56.04
Fe2O3 0.00 0.19 0.08
Cost/kg =20
Si:Al 6.51
SiB:Al 7.61
Expan 7.54
MDT: TEJEDA.TMT
Ababi on fri 3 jan 03
Hello Gabriel
You may noticed that the limit tables of Insight are pretty wide, there is a reason for it.
After all when you test a lot of glazes, bring the tiles to the computer and check , after
a while you know the limits. I use lately Matrix there are more details on the limits but I
have learnt the limits of my kiln at ^6. and usually follow my knowledge rather than the
limits.
I am not using a gas kiln so I am not sure I can advise you, exactly what to do.
Back to the "wide limits"
Try ^04 and ^03 glazes. Some of my 04 glazes are working good up to ^6 ( I am not
working higher so I cannot tell you about higher cone result.
I am offering you here a glaze that in 05 is a magical beauty.
At 04 it is less beautiful. I will offer it to you as clear, Because of the high alumina, I
believe it will fire nice at ^02.
This is an American* Glaze
(* America is a small Island between the Europe and Asia)
FAUX LEAD STRONTIUM BASE
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Cone 04 1060 deg.C. -
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
FRIT 3110 30.60
Gerstley B. 33.00
KAOLIN 26.00
Wollastonite 3.00
STRONTIUM CARBONATE 2.50
SILICA 5.00
Bentonite 2.00
(copper carbonate 4.00)
I offer you to use it as clear
I will add a recipe of mine The next glaze is yellow brown in ^6 while in ^ 03 is straw
yellow
FALLS CREEK SHINO ABABI.#6
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Cone 6 1201 deg.C. -
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
FRIT 3134 40.00
RED CLAY (GRT) 30.00 Try redart
Dolomite 5.00
ULTROX 10.00
Tin Oxide 5.00
Red Iron Oxide 1.00
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Seger Weight%
KNO 0.287 7.20%
CaO 0.606 12.54%
MgO 0.107 1.59%
Al2O3 0.194 7.30%
B2O3 0.463 11.89%
SiO2 2.291 50.83%
ZrO2 0.190 8.64%
K2O 0.052 1.82%
Na2O 0.235 5.37%
Al:Si 11.81
Expan. 7.57
ST 323.02
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
So Don't worry about the short time I am only 6 years in ceramics and doing well!
Ababi Sharon
Glaze addict
Kibbutz Shoval Israel
ababisha@shoval.org.il
http://members4.clubphoto.com/ababi306910/
> I am new to ceramics(one year of experience), I recently got INSIGHT 5x
>glazing program and I wonder where I could get more Unity Formula Limits or
>Mole %'s and what do you think of using them? I am restricted to cone 02 and
>in search of the perfect glossy transparent formula for colors. If anyone can
>help me I will really appreciate it.
>Here is a cone 02 shiny clear recipe that I made. It works with all colors, but it
>blisters when I use it on tall ceramic pieces that are closer to the burners of my
>oxidation gas kiln. Anybody is welcome to suggest what they thing in how to fix
>this problem. I will try anything and will tell you how it went.
>Thankyou for your time!
>Gabriel Tejeda
>gabriel.tejeda@davidbrooks.com
>Ghost Recipe
>=========
> Frit 3292 40.00 42.33%
> FRIT 266 20.00 21.16%
> EPK KAOLIN.......... 10.00 10.58%
> WOLLASTONITE 10.00 10.58%
> STRONTIUM CARBONATE 7.50 7.94%
> DOLOMITE 4.00 4.23%
> BENTONITE........... 2.50 2.65%
> CMC GUM............. 0.50 0.53%
> ========
> total: 94.50
>
> Unity Analysis Mole%
> CaO 0.50* 10.92%w 12.92%m
> Li2O 0.02* 0.20 0.45
> MgO 0.09* 1.41 2.33
> K2O 0.05* 1.67 1.17
> Na2O 0.14* 3.33 3.57
> SrO 0.21* 8.36 5.35
> TiO2 0.00 0.05 0.04
> Al2O3 0.33 13.22 8.60
> B2O3 0.37 9.89 9.44
> P2O5 0.00 0.03 0.01
> SiO2 2.17 50.74 56.04
> Fe2O3 0.00 0.19 0.08
> Cost/kg
> Si:Al 6.51
> SiB:Al 7.61
> Expan 7.54
>MDT: TEJEDA.TMT
>______________________________________________________________________________
>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.
Ron Roy on mon 6 jan 03
Hi Gabriel,
There is no lead or zinc in your glaze so I have to conclude that it is an
over firing problem - from being to close to the burners. Keep them away or
put something in front of the ware to protect from the burner flame - and
make sure you air is adjusted to give as much air as possible consistant
with a rise in temperature. If your clay is darker - (not white) there is a
chance that it it is getting reduced - that may cause it to over fire and
cause the blistering.
RR
> I am new to ceramics(one year of experience), I recently got INSIGHT 5x
>glazing program and I wonder where I could get more Unity Formula Limits
>or Mole %'s and what do you think of using them? I am restricted to cone
>02 and in search of the perfect glossy transparent formula for colors. If
>anyone can help me I will really appreciate it.
>
>Here is a cone 02 shiny clear recipe that I made. It works with all
>colors, but it blisters when I use it on tall ceramic pieces that are
>closer to the burners of my oxidation gas kiln. Anybody is welcome to
>suggest what they thing in how to fix this problem. I will try anything
>and will tell you how it went.
>
>Thankyou for your time!
>
>Gabriel Tejeda
>
>gabriel.tejeda@davidbrooks.com
>
>Ghost Recipe
>=========
> Frit 3292 40.00 42.33%
> FRIT 266 20.00 21.16%
> EPK KAOLIN.......... 10.00 10.58%
> WOLLASTONITE 10.00 10.58%
> STRONTIUM CARBONATE 7.50 7.94%
> DOLOMITE 4.00 4.23%
> BENTONITE........... 2.50 2.65%
> CMC GUM............. 0.50 0.53%
> ========
> total: 94.50
>
> Unity Analysis Mole%
> CaO 0.50* 10.92%w 12.92%m
> Li2O 0.02* 0.20 0.45
> MgO 0.09* 1.41 2.33
> K2O 0.05* 1.67 1.17
> Na2O 0.14* 3.33 3.57
> SrO 0.21* 8.36 5.35
> TiO2 0.00 0.05 0.04
> Al2O3 0.33 13.22 8.60
> B2O3 0.37 9.89 9.44
> P2O5 0.00 0.03 0.01
> SiO2 2.17 50.74 56.04
> Fe2O3 0.00 0.19 0.08
>
> Cost/kg
> Si:Al 6.51
> SiB:Al 7.61
> Expan 7.54
>
>MDT: TEJEDA.TMT
>
>______________________________________________________________________________
>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.
Ron Roy
RR#4
15084 Little Lake Road
Brighton, Ontario
Canada
K0K 1H0
Phone: 613-475-9544
Fax: 613-475-3513
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