vince pitelka on fri 11 oct 02
> While browsing for something else, I ran across this in the archives:
> Made up Vince Pitelka's 'all temperature white slip'."
> Would the recipe still be available?
Catherine -
Here it is, slightly modified for the better. This slip is for application
on wet or damp greenware - thickly only on wet ware, but can be applied
thinly on leather-hard. The "all-temperature" designation is a bit of a
misnomer. As you will see from the recipe, it is basically just a porcelain
recipe with a little borax added to increase hardness of the glaze coating
and increase adhesion early in the firing. So this slip will be a little
immature on low-fire work. In most cases that is not an issue, but you
should be aware of it.
All-Temperature Slip
Kaolin --------------- 32
Ball Clay ------------ 19
Potash Feldspar ----- 26
Flint ----------------- 18
Borax ---------------- 5
Total --------------- 100
Plus:
Zircon Opacifier ------ 8
If you use this recipe at high-fire temperatures for slips containing
significant amounts of iron, as in a medium to dark brown slip or a black
slip, reduce the feldspar content in proportion to the amount of iron added.
Otherwise the slip will be overfluxed and likely to blister.
Best wishes -
- Vince
Vince Pitelka
Appalachian Center for Crafts
Tennessee Technological University
1560 Craft Center Drive, Smithville TN 37166
Home - vpitelka@dtccom.net
615/597-5376
Work - wpitelka@tntech.edu
615/597-6801 ext. 111, fax 615/597-6803
http://www.craftcenter.tntech.edu/
Catherine White on sat 12 oct 02
Vince,
Thanks for the recipe. I high-fire so no problem there.
I recently came into about 40 older issues of pottery magazines and was
surprised at how many ClayArters contribute articles. You all are so
generous of your knowledge and time.
Catherine in Yuma, AZ
----- Original Message -----
From: "vince pitelka"
> Catherine -
> Here it is, slightly modified for the better. This slip is for
application
> on wet or damp greenware - thickly only on wet ware, but can be applied
> thinly on leather-hard. The "all-temperature" designation is a bit of a
> misnomer. As you will see from the recipe, it is basically just a
porcelain
> recipe with a little borax added to increase hardness of the glaze coating
> and increase adhesion early in the firing. So this slip will be a little
> immature on low-fire work. In most cases that is not an issue, but you
> should be aware of it.
>
> All-Temperature Slip
> Kaolin --------------- 32
> Ball Clay ------------ 19
> Potash Feldspar ----- 26
> Flint ----------------- 18
> Borax ---------------- 5
> Total --------------- 100
> Plus:
> Zircon Opacifier ------ 8
>
> If you use this recipe at high-fire temperatures for slips containing
> significant amounts of iron, as in a medium to dark brown slip or a black
> slip, reduce the feldspar content in proportion to the amount of iron
added.
> Otherwise the slip will be overfluxed and likely to blister.
> Best wishes -
> - Vince
>
> Vince Pitelka
> Appalachian Center for Crafts
> Tennessee Technological University
> 1560 Craft Center Drive, Smithville TN 37166
> Home - vpitelka@dtccom.net
> 615/597-5376
> Work - wpitelka@tntech.edu
> 615/597-6801 ext. 111, fax 615/597-6803
> http://www.craftcenter.tntech.edu/
>
>
____________________________________________________________________________
__
> 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.
joan woodward on sun 13 oct 02
Vince,
Could Custer be used instead of Potash?
Thanks,
Joan
Catherine White fe wrote:Vince,
Thanks for the recipe. I high-fire so no problem there.
I recently came into about 40 older issues of pottery magazines and was
surprised at how many ClayArters contribute articles. You all are so
generous of your knowledge and time.
Catherine in Yuma, AZ
----- Original Message -----
From: "vince pitelka"
> Catherine -
> Here it is, slightly modified for the better. This slip is for
application
> on wet or damp greenware - thickly only on wet ware, but can be applied
> thinly on leather-hard. The "all-temperature" designation is a bit of a
> misnomer. As you will see from the recipe, it is basically just a
porcelain
> recipe with a little borax added to increase hardness of the glaze coating
> and increase adhesion early in the firing. So this slip will be a little
> immature on low-fire work. In most cases that is not an issue, but you
> should be aware of it.
>
> All-Temperature Slip
> Kaolin --------------- 32
> Ball Clay ------------ 19
> Potash Feldspar ----- 26
> Flint ----------------- 18
> Borax ---------------- 5
> Total --------------- 100
> Plus:
> Zircon Opacifier ------ 8
>
> If you use this recipe at high-fire temperatures for slips containing
> significant amounts of iron, as in a medium to dark brown slip or a black
> slip, reduce the feldspar content in proportion to the amount of iron
added.
> Otherwise the slip will be overfluxed and likely to blister.
> Best wishes -
> - Vince
>
> Vince Pitelka
> Appalachian Center for Crafts
> Tennessee Technological University
> 1560 Craft Center Drive, Smithville TN 37166
> Home - vpitelka@dtccom.net
> 615/597-5376
> Work - wpitelka@tntech.edu
> 615/597-6801 ext. 111, fax 615/597-6803
> http://www.craftcenter.tntech.edu/
>
>
____________________________________________________________________________
__
> 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.
______________________________________________________________________________
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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vince pitelka on mon 14 oct 02
> Vince,
> Could Custer be used instead of Potash?
> Thanks,
> Joan
Joan -
Custer is a potash feldspar, as is G-200.
Best wishes -
- Vince
Vince Pitelka
Appalachian Center for Crafts
Tennessee Technological University
1560 Craft Center Drive, Smithville TN 37166
Home - vpitelka@dtccom.net
615/597-5376
Work - wpitelka@tntech.edu
615/597-6801 ext. 111, fax 615/597-6803
http://www.craftcenter.tntech.edu/
joan woodward on mon 14 oct 02
Shows how much I know! Thanks, Vince. You'll be happy toknow that I plan to buy some books at NCECA that should answer some of these questions for me.
Joan
vince pitelka wrote:> Vince,
> Could Custer be used instead of Potash?
> Thanks,
> Joan
Joan -
Custer is a potash feldspar, as is G-200.
Best wishes -
- Vince
Vince Pitelka
Appalachian Center for Crafts
Tennessee Technological University
1560 Craft Center Drive, Smithville TN 37166
Home - vpitelka@dtccom.net
615/597-5376
Work - wpitelka@tntech.edu
615/597-6801 ext. 111, fax 615/597-6803
http://www.craftcenter.tntech.edu/
______________________________________________________________________________
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.
---------------------------------
Do you Yahoo!?
Faith Hill - Exclusive Performances, Videos, & more
faith.yahoo.com
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