WALLY ASSELBERGHS on thu 29 nov 01
Dear USA-clayarters,
I refer to one "Luster Raku" recipe, sent by Ababi. Copy below. =20
Never heard of "Ultrox" in Europe.
Is this a mineral, or a frit ?
Could anyone give me chemical composition/formulae....
Can it be replaced by equivalent ?
Dear European Clayarters : Same questions, any address of =
supplier/distributor on the continent ?
Thanks for all usefull information.
And thanks, Ababi, for the receipt. Shalom to you.
Wally. First daytime frost in Flanders now.
wally.asselberghs@pi.be
> Date: Wed, 28 Nov 2001 07:36:26 +0200
> From: Ababi
> Subject: Luster raku
>>I add here a recipe from Dewit G.'s list
>LUSTEROUS BLUE
>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> GERSTLEY BORATE..... 40.00 44.44%
>SODA FELDSPAR....... 10.00 11.11%
>ULTROX.............. 10.00 11.11%
>COPPER OXIDE........ 20.00 22.22%
> COBALT OXIDE........ 10.00 11.11%
=3D=3D=3D=3D=3D=3D=3D=3D
90.00
Ababi on thu 29 nov 01
As a good American friend I send you to this link:
http://www.cct.es/others.htm
OTHER PRODUCTS
CCT also commercializes a whole range of products and additives for de
(Their words) ceramic industry, widely tested and accepted:
Frits.
Zirconium Silicate
> Dear USA-clayarters,
>I refer to one "Luster Raku" recipe, sent by Ababi. Copy below.
>Never heard of "Ultrox" in Europe.
>Is this a mineral, or a frit ?
>Could anyone give me chemical composition/formulae....
>Can it be replaced by equivalent ?
>Dear European Clayarters : Same questions, any address of
>supplier/distributor on the continent ?
>Thanks for all usefull information.
>And thanks, Ababi, for the receipt. Shalom to you.
>Wally. First daytime frost in Flanders now.
>wally.asselberghs@pi.be
>> Date: Wed, 28 Nov 2001 07:36:26 +0200
>> From: Ababi
>> Subject: Luster raku
>>>I add here a recipe from Dewit G.'s list
>>LUSTEROUS BLUE
>>==============
>> GERSTLEY BORATE..... 40.00 44.44%
>>SODA FELDSPAR....... 10.00 11.11%
>>ULTROX.............. 10.00 11.11%
>>COPPER OXIDE........ 20.00 22.22%
>> COBALT OXIDE........ 10.00 11.11%
> ========
> 90.00
>Attachment converted:
> "D:\LINGO\Attach\LNG73175.HTM"
Cindy Strnad on thu 29 nov 01
Dear Wally,
Ultrox is an opacifier. You can use zirconium,
zircopax--whatever your favorite opacifier might
be. If you switch to a non-zirconium opacifier, it
will change the look of the glaze and you'll need
to adjust the quantity.
Cindy Strnad
Earthen Vessels Pottery
RR 1, Box 51
Custer, SD 57730
USA
cindy@earthen-vessels-pottery.com
http://www.earthen-vessels-pottery.com
Wade Blocker on thu 29 nov 01
Wally,
Ultrox is an opacifier. SiO2 KNaO2 65
Zircopax would be a good substitute SiO2 34.28 KNaO2 64.88 CaO.22
Hope this helps, Mia in ABQ
Alisa og Claus Clausen on fri 30 nov 01
Dear Wally,
It is an opacifier and I use Zircopax like product here called Zircon 5
with good results.
Best regards,
Cerama also supplies it.
Ron Roy on fri 30 nov 01
Ultrox is a zirconium silicate - an opasifier - like zircopax and superpax
- zirconium silicates are all very similar. I would think any zirconium
silicate would do but mesh size has an effect.
Does finer mesh mean more or less opasification??? anyone???
Ultrox
ZrO2 - 65%
SiO2 - 35%
Zircopax ..... Superpax (superpax is finer then zircopax)
ZrO - 64.7 ..... 63.8
SiO2 - 33.8 ..... 34.3
Plus trace amounts of Al2O3, Fe2O3, TiO2, and LOI of 0.75 and 1.0
There is no sodium or potassium present.
RR
> Dear USA-clayarters,
>
>I refer to one "Luster Raku" recipe, sent by Ababi. Copy below.
>Never heard of "Ultrox" in Europe.
>Is this a mineral, or a frit ?
>Could anyone give me chemical composition/formulae....
>Can it be replaced by equivalent ?
Ron Roy
RR# 4
15084 Little Lake Rd..
Brighton,
Ontario, Canada
KOK 1H0
Residence 613-475-9544
Studio 613-475-3715
Fax 613-475-3513
Ababi on fri 30 nov 01
My supplier for a while had a light gray material they had a name in
Hebrew I think something like "Powdered zircon".
It gave me nice mottled effect. Latter they moved to a white powder,
ultrox as they said finer grinding that was all the different. Since
than I cannot get that mottling effect. I have asked them, they have a
serious adviser. They "convinced" me that probably there was another
reason for the disappearing of the mottling. Since than, every
supplier, from the few in Israel, i talk to, I ask if his Zircon
silicate is fine grinned or not. Probably they buy it all from the same
importer!
Ababi
---------- Original Message ----------
>Ultrox is a zirconium silicate - an opasifier - like zircopax and
>superpax
>- zirconium silicates are all very similar. I would think any zirconium
>silicate would do but mesh size has an effect.
>Does finer mesh mean more or less opasification??? anyone???
>Ultrox
>ZrO2 - 65%
>SiO2 - 35%
> Zircopax ..... Superpax (superpax is finer then zircopax)
>ZrO - 64.7 ..... 63.8
>SiO2 - 33.8 ..... 34.3
>Plus trace amounts of Al2O3, Fe2O3, TiO2, and LOI of 0.75 and 1.0
>There is no sodium or potassium present.
>RR
>> Dear USA-clayarters,
>>
>>I refer to one "Luster Raku" recipe, sent by Ababi. Copy below.
>>Never heard of "Ultrox" in Europe.
>>Is this a mineral, or a frit ?
>>Could anyone give me chemical composition/formulae....
>>Can it be replaced by equivalent ?
>Ron Roy
>RR# 4
>15084 Little Lake Rd..
>Brighton,
>Ontario, Canada
>KOK 1H0
>Residence 613-475-9544
>Studio 613-475-3715
>Fax 613-475-3513
>________________________________________________________________________
>______
>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 sat 1 dec 01
The KNaO here should be ZrO2 - there is no KNaO (short for K2O&Na2O) in
either superpax or Ultrox.
> Ultrox is an opacifier. SiO2 KNaO2 65
> Zircopax would be a good substitute SiO2 34.28 KNaO2 64.88 CaO.22
Ron Roy
RR# 4
15084 Little Lake Rd..
Brighton,
Ontario, Canada
KOK 1H0
Residence 613-475-9544
Studio 613-475-3715
Fax 613-475-3513
Ron Roy on fri 7 dec 01
Don asked me to send his post to ClayArt saying it would be opened by more
if if I sent it - it's good information.
RR
>>I have used all three at the same percentage in glazes,
>>but Ultrox seems to be slightly more white in my use.
>>Somewhere I have a booklet from the Ultrox folks
>>with formulas for glazes with upwards of 20% Ultrox.
>>The booklet seemed geared to commercial companies
>>like the bathroom fixtures.
>>
>>Don (west of Craig and south of Nils in Oregon)
Ron Roy
RR# 4
15084 Little Lake Rd..
Brighton,
Ontario, Canada
KOK 1H0
Residence 613-475-9544
Studio 613-475-3715
Fax 613-475-3513
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