Eva Gallagher on sun 22 jan 12
Yes I use Ti and gert bor 1:1 all the time - it really promotes crystal
growth both in electric and gas. Need to spray though and not get it too
thick. I often overspray whatever glaze I am using. Also works great with
all the Steven Hill glazes as another bit of overspray here and there.
Great over licorice at cone 6.
Eva Gallagher
Deep River, Ontario
http://newfoundoutpotter.blogspot.com/
----- Original Message -----
From: "Edouard Bastarache"
To:
Sent: Sunday, January 22, 2012 11:25 AM
Subject: Re: rutile
> Has anyone tried Titanium Dioxide washes instead of Rutile washes?
>
> Gis,
>
> Edouard Bastarache
> Spertesperantisto
>
> Sorel-Tracy
> Quebec
>
> http://www.flickr.com/photos/30058682@N00/
> http://edouardbastarache.blogspot.com/
> http://smart2000.pagesperso-orange.fr/bloggs_edouard.htm
> http://www.facebook.com/edouard.bastarache
>
>
>
>
>
> ----- Original Message -----
> From: "David Hendley"
> To:
> Sent: Saturday, January 21, 2012 11:17 PM
> Subject: Re: rutile
>
>
>> ----- Original Message -----
>> Titanium in the form of rutile is most refractory. When washes of
>> rutile are used over glazes pin holing may occur. I use a mix of
>> Colemanite/Gertsley Borate and rutile for washes over glazes. The mix I
>> use is a traditional mix of 60 parts Colemanite/Gertsley Borate and 40
>> parts Rutile. The flux helps to prevent pin holing.
>>
>> A form of rutile was used on the bottoms of Chinese pots to prevent the
>> piece from sticking to a shelf. Victor Babu makes a circle of rutile in
>> the foot area of his platters to prevent the porcelain from sticking,
>> should the inside of the platters foot warp and touch the kiln shelf.
>> Bill Merrill
>>
>>
>> Bill, I have a hard time believing that rutile is the most refractory
>> form of titanium. My experience tells me that iron is the most fluxing
>> oxide we use. Rutile is titanium plus iron, so it would seem that
>> the iron would make it more meltable than pure titanium dioxide?
>> I don't know, never test it, but this seems logical.
>> I bet the ancient Chinese potters would have used titanium dioxide
>> on the bottoms of their pots had it been available to them.
>>
>> I have continued to use the same overglaze recipes ever since I got
>> then from John Glick in the '70's. Rutile overglaze is 25% rutile,
>> 25% iron oxide, and 50% celadon glaze. It's just right for producing
>> those beautiful gold crystalline accents on a glossy glaze.
>>
>> David Hendley
>> david@farmpots.com
>> http://www.farmpots.com
>> http://www.thewahooligans.com
>>
>
>
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