Toni Hall on tue 20 aug 96
Dear Clayart Members,
I can't believe I am finally writing my first clayart question, but
does anyone have a stable, matt or gloss, cone 6 black glaze? It would be
nice if the glaze was food safe, but right now I would accept anything in
black at cone 5,6, or 7. Thanks for any help.
T Hall in Roswell, NM, land of awesome sunsets and UFOs.
Michelle H. Lowe on tue 20 aug 96
At 5:24 PM 8/20/96 -0400, Toni Hall wrote:
> I can't believe I am finally writing my first clayart question, but
>does anyone have a stable, matt or gloss, cone 6 black glaze? It would be
>nice if the glaze was food safe, but right now I would accept anything in
>black at cone 5,6, or 7. Thanks for any help.
Hi Toni,
Here are a few black cone 6 glazes I gleaned from clayart. If you sub
Strontium carb for the Barium in the second they will all be food safe.
From Sharon LaRocca-Miranda-
metallic black, cone 6 ox (wonderful!)
spodumene 50
Gerst. bor 25
flint 25
black iron 10
cobalt ox 2
copper carb 4
*****
from Dan Taylor
METALLIC BLACK ^6 OX.
Custer Feldspar 36
Whiting 9
Colmanite 5
Dolomite 5
Talc 16
Barium Carb. 8 (Mishy suggests subbing Strontium 5 here)
Flint 16
Bentonite 5
Zircopax 15%
Rutile 20%
Cobalt Oxide 3%
Manganese Dioxide 2%
Black Iron Oxide 3%
I have also added 3% #6600 Black Mason stain for an even more black glaze.
*****
(can't remember who posted this originally, might've been me ;)
Crystalline Black ^6 ox
Dolomite 21
Gerstley Borate 5.25
Custer spar 15.75
Neph Syenite 26.5
Ball clay 21
Flint 10.5
Cobalt 6
Copper 6
*****
Hope these help :)
Mishy
Michelle Lowe, potter in the Phoenix desert \|/ |
mishlowe@indirect.com -O- | |
mishlowe@aztec.asu.edu /|\ | | |
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http://www.amug.org/~mishlowe/index.html ____ |
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<__>
KEMPB on wed 21 aug 96
Hi T Hall in Roswell,
Here is a Cone 6 glaze that I have found to be ver
reliable
Potash Feldspar 42, Silica 26, Whiting 15, Kaolin 15, Zinc Oxide 12, Red
Iron Oxide 8, Cobalt Oxide 1
This gives a shiny, mirror black.
regards
Brian Kemp. Simgapore
kemob@nievax.nie.ac.sg
Jo Ann Stevens on wed 21 aug 96
Here is a black glaze that I works well for me.
I fire to cone 6 in ox. and use it on both a white and brown body
Alberta slip 85
Nepheline syenite 5
Wollastonite 10
Cobalt oxide 2%
Hope this helps.
Jo Ann Stevens
St. Catharines, Ontario, Canada
PJLewing@aol.com on thu 22 aug 96
Toni,
Try this one:
Larry's Black
Custer 42
Whiting 13
EPK 8
Barium C. 2
Silica 20
Lithium C. 5
Cobalt C. 3
Iron O. 4
Manganese D. 2
This is a very stable gloss black with a long firing range. If you want it
more matt, try cutting down the lithium.
Hope this helps.
Paul Lewing, Seattle
Marek & Pauline Drzazga-Donaldson on thu 16 mar 00
------------------
----- Original Message -----
From: arlene h. =3Cchinacat54=40hotmail.com=3E
To: =3CCLAYART=40LSV.UKY.EDU=3E
Sent: Wednesday, March 15, 2000 7:44 PM
Subject: black glaze
=3E ----------------------------Original message----------------------------
=3E Our club is in need of a recipe for a shiny black foodsafe glaze. We =
fire
=3E at =5E6 oxidation. Thank you=21
=3E =
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F==
5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5=
F=5F=5F=5F
=3E Get Your Private, Free Email at http://www.hotmail.com
=3E
Cone 6 Based on Leach Clear/Transparent Oxidised
Potash Feldspar 40
Flint (Quartz) 25
Whiting (CaCo3) 20
China Clay 12.5
This gives a really good shiny surface and can be quite thick and does not
run. You could add 2.5 of Bentonite to make it up to unity.
adding the oxides Iron Oxide 8
Mang. Di. 3
Cob Carb 1
This gives an absolutely brill black, used quite thick. I posted the base
glaze a few days ago. Also if you want a raw glaze the following is just
your man, you will have to work out the thickness to apply, as this is
variable.
Cone 6 Raw or Once Fired Glaze. This glaze can be painted on very easily=21
Potash Feldspar 38
Flint (Quartz) 20
Whiting (Chalk) 32
Ball Clay 10
Bentonite 2
Happy potting Marek http://www.moley.uk.com
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