jeff walker on sat 21 feb 98
A question for the group. If my memory serves me correct ultrox is an =
opacifier
like ziropax.
My question is am I right? I can not find this listed in any of my Books on
glaze help.
Cold in the Mid-West
jeff Walker
David Woodin on sun 22 feb 98
Ultrox is an opacifier and stronger than zircopax, 6% makes white.
Don Prey on sun 22 feb 98
Jeff,
You have it right. These are actually brand names for essentially the same
material.
Don Prey in Oregon
Duane Littell on tue 24 feb 98
-------------------
Jeff,
Trust me--Ultrox is an opacifier=21=21=21=21=21=21=21 So is Tin ox. =
Zirconia ox. Other
reagents are Ceria, Arsenic Trioxide, certain spinels. Secondary =
groups-Zinc
Ox. Alumina, Magnesia, Calcia, Phosphates i.e. Bone Ash.
Dr. Biz
Talbott on tue 21 apr 98
Does anyone have information on Ultrox and whether or not it has a substitute.
Any information will be appreciated...
TIA... Marshall
PS.. I searched the archieves (see below address) for ultrox but nothing
appeared...
http://www.reference.com/cgi-bin/pn/listarch?list=clayart@lsv.uky.edu
http://www.PotteryInfo.com
101 CLAYART MUGS (Summer 1998)
2ND ANNUAL CLAYARTERS' GALLERY - NAPLES, MAINE (Summer 1998)
E-MAIL ME FOR APPLICATIONS
Celia & Marshall Talbott, Pottery By Celia, Route 114, P O Box 4116,
Naples, Maine 04055-4116,(207)693-6100 voice and fax,(call first)
---------------------------------------------------------------------
DIANA PANCIOLI, ASSOC. PROF. on wed 22 apr 98
Any opacifier--zircopax, etc.
On Tue, 21 Apr 1998, Talbott wrote:
> ----------------------------Original message----------------------------
> Does anyone have information on Ultrox and whether or not it has a substitute.
> Any information will be appreciated...
>
> TIA... Marshall
>
>
> PS.. I searched the archieves (see below address) for ultrox but nothing
> appeared...
>
> http://www.reference.com/cgi-bin/pn/listarch?list=clayart@lsv.uky.edu
>
> http://www.PotteryInfo.com
>
> 101 CLAYART MUGS (Summer 1998)
> 2ND ANNUAL CLAYARTERS' GALLERY - NAPLES, MAINE (Summer 1998)
> E-MAIL ME FOR APPLICATIONS
>
> Celia & Marshall Talbott, Pottery By Celia, Route 114, P O Box 4116,
> Naples, Maine 04055-4116,(207)693-6100 voice and fax,(call first)
> ---------------------------------------------------------------------
>
Hrnce on wed 22 apr 98
Marshall
look up Tony Hansen's Re:opacifiers from Nov 30,1966 (Foresight material
database report)
Jiri
Anne W. Bracker on wed 22 apr 98
In February, Davidf Woodlin sent the following reply regarding ultrox:
Ultrox is an opacifier and stronger than zircopax, 6% makes white.
Good luck,
Anne
Bracker's Good Earth Clays, Inc.
1831 E 1450 Road
Lawrence, KS 66044
1 785 841-4750 OFFICE
1 785 841-8142 FAX
1 888 822-1982 ORDER LINE
bracker@midusa.net E-MAIL
"Clay Ain't Dirt"
PotterEve on wed 22 apr 98
In a message dated 98-04-21 07:37:07 EDT, you write:
<<
----------------------------Original message----------------------------
Does anyone have information on Ultrox and whether or not it has a
substitute.
Any information will be appreciated...
TIA... Marshall
>>
A member of the Laguna technical support office told me that Superpax is an
equivalent. I just happened to ask last week. I hope that the information
is good!
Regards,
Eve Oettinger
Thousand Oaks, CA
Tony Hansen on wed 22 apr 98
> Does any have info on ultrox?
MATERIAL: ULTROX
DESCRIPTION: ZIRCONIUM SILICATE GLAZE OPACIFIER
DATE: 03/07/98
SUPPLIER: M & T CHEMICAL
FAMILY: 7-Opacifier
RAW WEIGHT: 189.54
ANALYSIS & UNITY FORMULA
========================
ZrO2...... 65.00% [ 1.00]
SiO2...... 35.00% 1.10
======
100.00
HAZARDS
-------
Ultrox products are relatively non-hazardous based on plant
operating
experience. Avoid inhalation of dust. May cause eye irritation on
repeated
contact.
DETAIL NOTES
------------
Three types are available: Ultrox, Ultrox 500W, Ultrox 1000W.
Ultrox opacifiers are claimed to assure uniformity of glaze opacity,
texture and color over a wide range of temperatures and
compositions. They
reduce the expansion of glazes and tend to reduce crazing. They
increase
the resistance of glazes to chemical attack and widen the firing
range.
Ultrox melts at 4000F and has a coefficient of thermal expansion of
42 x
10-7, a hardness of 7.5 Moh and index of refraction of 2. It is
composed of
65% ZrO2 and 35% SiO2 in a formula of ZrO2:SiO2.
Ultrox is used for the production of both white and color glazes for
sanitary ware, wall tile, glazed brick, structural tile, stoneware,
dinnerware and special porcelains. It is used in amount of 12-20% of
the
glaze batch.
-Ultrox has an average particle size of 2 microns.
-Ultrox 500W has an average particle size of 1 micron and thus
provides
greater whitening power. It lightens color appreciably and thus
requires
more stain.
-Ultrox 1000W has an average particle size of .5 micron and provides
the
maximum reflectance and opacity.
Ultrox has an extremely high melting point and low uniform thermal
expansion and can thus be slip cast or pressed to produce zirconium
silicate refractories (for use in glass melting furnaces, foundries,
refractory porcelains, washes for refractory slabs, refractory
cements).
Compositions of Ultrox alone can approach the theoretical density of
zircon.
Liquidous temperature: 4000F
Coefficient of thermal expansion: 42 x 10 -7
Hardness: 7.5 Moh's scale
Index of refraction: 2
--
T o n y H a n s e n thansen@digitalfire.com
Don't fight the glaze dragon alone
INSIGHT, Magic of Fire at http://digitalfire.com
Carolyn Eddins on wed 21 jul 99
Douglas,
Just yesterday I wanted to mix a test batch of a recipe calling for
Ultrox. I could not find it listed in any of my books (I started with
the Hamers' Dictionary and went from there). A local supplier I
consulted said he thought Ultrox was an opacifier and suggested
substituting Zircopax. The opacifer part makes perfect sense given the
recipe. I made a 1:1 substitution. Perhaps both you and I will learn
more from some of the gurus.
Carolyn Eddins
Baltimore
Diane Palmquist on thu 22 sep 05
Thanks to all who responded to my question about Ultrox. I =
substituted Zircopax 1/1 for it and the glaze came out very good. This =
glaze was a little more matt before but all in all I am pleased with it.
thanks,
Diane
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