Brad Carter on sat 16 sep 06
I'd like to test some glaze recipes for cone 6 magnesium satin semi-matt
glazes--with buttery surface texture. Does anyone have a favorite recipe I could
try?
Brad Carter
Grass Valley, Calif
Don Goodrich on sun 17 sep 06
Hi Steve,
Because it's not glossy and it's low in silica,
I've avoided using it inside vessels and haven't tried mixing it
with any toxic colorants. I find it makes a nice rim for my
candle sconces, where the center parts are all shiny glass.
It also takes brushed-on decoration with stains/oxides pretty well.
I've used it that way on the outsides of some mugs.
Cheers,
Don Goodrich
>Don -- An interesting glaze ... appears to be a little
>low in silica, though. Have you tested for stability?
>I've tested several glazes where I went under 60%
>(molar) in silica, and most all of them let me down.
>Sure looks nice.
>
>-- Steve Slatin
Emily Lees on sun 17 sep 06
I hope everybody responds on list -- I am interested in this, too.
Semi-matt or even matt (for my non-functional pieces).
Emily
Brad Carter wrote:
>I'd like to test some glaze recipes for cone 6 magnesium satin semi-matt
>glazes--with buttery surface texture. Does anyone have a favorite recipe I could
>try?
>
>Brad Carter
>Grass Valley, Calif
>
>______________________________________________________________________________
>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.
>
>
>
Don Goodrich on sun 17 sep 06
Brad, Emily, and whoever...
Here's the ^6 Magnesia that I've been using.
A recipe from the old college notebook:
50 Nepheline syenite
37 Talc
4 Whiting
4 Zinc oxide
5 EPK
5 Gerstley borate
A waxy, buttery surface. Can be darkened with a couple
percent of iron, manganese, rutile, cobalt, etc.
A photo of it on buff stoneware is here:
http://www.dongoodrichpottery.com/images/sc7.jpg
although this reminds me I should get better pix
now that I have a better camera.
Analysis (from GlazeChem):
Na2O 0.16 Al2O3 0.24 SiO2 1.57
K2O 0.05 B2O3 0.04 P2O5 0.00
MgO 0.49 TiO2 0.00
CaO 0.21 Fe2O3 0.00
MnO 0.00
ZnO 0.09
Alumina:Silica ratio is 1.00:6.55
Neutral:Acid ratio is 1.00:5.68
Alk:Neut:Acid ratio is 1.00:0.28:1.57
Expansion: 75.6 x 10e-7 per degree C
Enjoy,
Don Goodrich
goodrichdn@aol.com
http://dongoodrichpottery.com/
Paul Lewing on sun 17 sep 06
On Sep 16, 2006, at 7:22 PM, Brad Carter wrote:
I'd like to test some glaze recipes for cone 6 magnesium satin semi-matt
glazes--with buttery surface texture. Does anyone have a favorite
recipe I could
try?
Brad, try this one:
Lewing's Mg Base
Talc 22.43
Neph Sy 28.04
EPK 9.35
Silica 7.48
Frit 3134 32.71
And just in case some folks still don't think that glaze calculation
software works, I came up with this recipe by making up the empirical
formula I thought would work, and making a recipe out of that in
Insight. This was my first and only try at inventing a Mg base, and
it worked very well the first time.
Paul Lewing
www.paullewingtile.com
Steve Slatin on sun 17 sep 06
Don -- An interesting glaze ... appears to be a little
low in silica, though. Have you tested for stability?
I've tested several glazes where I went under 60%
(molar) in silica, and most all of them let me down.
Sure looks nice.
-- Steve Slatin
Don Goodrich wrote:
Brad, Emily, and whoever...
Here's the ^6 Magnesia that I've been using.
A recipe from the old college notebook:
50 Nepheline syenite
37 Talc
4 Whiting
4 Zinc oxide
5 EPK
5 Gerstley borate
A waxy, buttery surface. Can be darkened with a couple
percent of iron, manganese, rutile, cobalt, etc.
A photo of it on buff stoneware is here:
http://www.dongoodrichpottery.com/images/sc7.jpg
although this reminds me I should get better pix
now that I have a better camera.
Analysis (from GlazeChem):
Na2O 0.16 Al2O3 0.24 SiO2 1.57
K2O 0.05 B2O3 0.04 P2O5 0.00
MgO 0.49 TiO2 0.00
CaO 0.21 Fe2O3 0.00
MnO 0.00
ZnO 0.09
Alumina:Silica ratio is 1.00:6.55
Neutral:Acid ratio is 1.00:5.68
Alk:Neut:Acid ratio is 1.00:0.28:1.57
Expansion: 75.6 x 10e-7 per degree C
Enjoy,
Don Goodrich
---------------------------------
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Linda Arbuckle on wed 20 sep 06
Check out Bob Wilt's shareware GlazChem page:
http://dinoclay.com/software/glzchem.html
See the EXTRA DATA link. You can download Bob's glaze calc and database free
and try for 90 days. A mere $35. to keep Bob's program, or you can save
things as html files and use them that way.He's posted the glazes I've
entered in the program under the UF collection link, and you can download
and import those. Over 1000 glazes in low, medium, and high temps. Even if
you don't do calc, it's a searchable database, and many people have helped
get a lot of the glazes in circulation into the database. You can export the
glazes into Insight, HyperGlaze, GlazeBase, or html format.
The mid-range glazes in the UF glaze materials have 600+ glazes entered, and
you can search for satin-matt glazes that contain dolomite, mag carb, or
talc. Many there. Many of the glazes are imported from GlazeBase files, and
contain whatever notes and information the donor was willing to add.
Linda Arbuckle
Steve Slatin on wed 20 sep 06
Linda --
'UF' is University of Florida, right? What is the collection link?
The http://www.arts.ufl.edu/ART/ceramics/ page is dead, and
the links on the http://www.arts.ufl.edu/art/Programs/ceramics.asp
page don't go anyplace else interesting.
inquiring minds, etc.
Thanks -- Steve Slatin
Linda Arbuckle wrote:
Check out Bob Wilt's shareware GlazChem page:
http://dinoclay.com/software/glzchem.html
See the EXTRA DATA link. You can download Bob's glaze calc and database free
and try for 90 days. A mere $35. to keep Bob's program, or you can save
things as html files and use them that way.He's posted the glazes I've
entered in the program under the UF collection link, and you can download
and import those. Over 1000 glazes in low, medium, and high temps. Even if
you don't do calc, it's a searchable database, and many people have helped
get a lot of the glazes in circulation into the database. You can export the
glazes into Insight, HyperGlaze, GlazeBase, or html format.
The mid-range glazes in the UF glaze materials have 600+ glazes entered, and
you can search for satin-matt glazes that contain dolomite, mag carb, or
talc. Many there. Many of the glazes are imported from GlazeBase files, and
contain whatever notes and information the donor was willing to add.
Linda Arbuckle
---------------------------------
How low will we go? Check out Yahoo! Messenger’s low PC-to-Phone call rates.
Maurice Weitman on wed 20 sep 06
At 17:13 -0700 on 9/20/06, Steve Slatin wrote:
>Linda --
>
> 'UF' is University of Florida, right? What is the collection link?
> The http://www.arts.ufl.edu/ART/ceramics/ page is dead, and
> the links on the http://www.arts.ufl.edu/art/Programs/ceramics.asp
> page don't go anyplace else interesting.
I believe Linda means the UF collection link within the GlazeChem
"Extra Data" download as shown at:
Regards,
Maurice
Russell Sheptak on thu 21 sep 06
While you cannot run the GlazChem software on a Mac without Virtual PC
or Parallels, you can download and read the recipe files. Here's what
I did:
(1) download the zip file. Stuffit expander will "expand" it to leave
a file with a .glz extension:
CermaicsWebClayartGlazes20010308.glz
for example, which is really just a structured plain text file. You
can open it in TextEdit (or Word) by control clicking (use the mouse to
select the file and then with the control key down, click on the file
to bring up the context sensitive menu) and selecting Open With ->
Other... and choosing TextEdit.
A recipe in a GlazChem file is very simple to read. Every recipe has a
name, a range (firing range), and a list of "component" and "amount"
entries that comprise the ingredients list. The chemistry isn't
stored, since that's redundant info that can be easily reconstructed
when the recipe is displayed in the program. You can use the "find"
capabilities of your text editor to search through for recipes that
match any single criteria (like all recipes where color = purple).
Here's the first entry in the above file as an example of what's stored
in a GlazeChem .glz recipe file.
name = #1818 Kawai Slip
index =
date = 6/3/96
source = SDSU CeramicsWeb ClayArt glaze database
type =
range = 6 - 10
firetype =
color =
vistexture =
quality = Slip or Engobe
transparency =
xtals =
bubbles =
flow =
durability =
flaws =
tested =
imagefile =
notefile =
limform =
by_vol = n
batchsize = 0
component = Kaolin
amount = 80
component = Grog (150 mesh)
amount = 20
note = |Add color to taste. I promised a while back to list this when I
found
note = |it! Kawai used a lot of thick slip trailing in his work and
this was
note = |given to me by one of his apprentices, Doug Lawrie. submitted
by:
note = |June M. Perry e-mail:xxx@aol.comm
note = |
So no need to feel left out.
rus
----------------------
Rus Sheptak rus@sonic.net
On Sep 20, 2006, at 6:40 PM, Brad Carter wrote:
> I tried downloading the GlazChem program, but turns out it won't run
> on my
> Mac. And the UF glaze database is written in GlazChem. Is there
> anyother way
> to get the UF recipes other than through GlazeChem?
>
> Brad Carter
> Grass Valley, Calif
>
> _______________________________________________________________________
> _______
> 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.
>
>
sincultura13 on thu 21 sep 06
Thnaks for the info... is there a way to get te recipes without the
program? For some reason it won't install on my computer...
Regards,
Sincultura132
--- In clayart@yahoogroups.com, Linda Arbuckle wrote:
>
> Check out Bob Wilt's shareware GlazChem page:
> http://dinoclay.com/software/glzchem.html
>
| |
|
