Paul Haigh on mon 5 nov 07
I know that TiO2 and rutile interact with iron slips/bodies, and that layering with these materials gives great effects. Looking through the archives, I've not seen much note of how they do in a woodfire. Does the iron in ash add neat effects? Is there a problem with ash fluxing it too much and running off the pot?
I'm making up experiemntal glazes for the first firing in my wood kiln and I need to know if rutile will be robust enough, or will need to be put in a saggar. I sort of like my new SiC shelves...
Paul Herman on mon 5 nov 07
We just unloaded a wood firing that had some rutile glazes in it and
they did fine. Some were fired in the anagama chamber, and some in
the salt, and they did fine too. No sagger needed.
Glad to be done with firing number sixteen.
Great Basin Pottery
Doyle, California US
On Nov 5, 2007, at 10:46 AM, Paul Haigh wrote:
> I'm making up experiemntal glazes for the first firing in my wood
> kiln and I need to know if rutile will be robust enough, or will
> need to be put in a saggar. I sort of like my new SiC shelves...
> Paul Haigh
> Londonderry, NH
Ivor and Olive Lewis on tue 6 nov 07
Dear Paul Haigh,
Rutile is a refractory material which will dissolve in a glaze melt if =
the temperature is high enough.
So if you have it as a slip on unglazed pots and you are relying on your =
ash build up to melt and react with the clay then you might get some =
very interesting results.
I have seen examples, but not from wood firing, where Rutile has given =
an ethereal violet cast within the body of the glaze.
Enjoy your experimentation.
Luke Nealey on tue 6 nov 07
I have fired Rutile #1 glaze from Britt's book a couple times in my m^3 fast
fire kiln on iron bearing stoneware to cone 9.5-11. Like you I am just
starting to fire this kiln and have found this glaze to be one of the more
robust glazes I have tried. It has done well in all locations in the
kiln. It is more violet and less blue, however, than I would like. I may
try it over a base glaze with a little Co in it next time.
Rankin Co. MS
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