May Luk on thu 10 jun 04
Hi all;
A follow up on rutile and tin glaze test.
Inspired by Alisa's stain fuming test. I had also mixed up some raspberry
without Chrome-also labelled it white cherry. :-)
I dipped my 4 sided test cube in white cherry. I did some brush work with
light rutile and another one with dark rutile on top of the glaze - only on
one side of the cube - as if it's maiolica painting.
I fired them on 2 separate firings. They both come out light pastel pink
solid. The dark rutile test is a tab more pink, but not too much. So, it's
very possible the rutile is chromium contaminated. I had not done a control
where there's no rutile just yet.
I'm liking how the white cherry look. It could be a nice tin glaze.
Thanks
May
London, UK
Alisa Liskin Clausen on fri 11 jun 04
>A follow up on rutile and tin glaze test.
>
>Inspired by Alisa's stain fuming test. I had also mixed up some raspberry
>without Chrome-also labelled it white cherry. :-)
>
>I dipped my 4 sided test cube in white cherry. I did some brush work with
>light rutile and another one with dark rutile on top of the glaze - only on
>one side of the cube - as if it's maiolica painting.
>
>I fired them on 2 separate firings. They both come out light pastel pink
>solid. The dark rutile test is a tab more pink, but not too much. So, it's
>very possible the rutile is chromium contaminated. I had not done a control
>where there's no rutile just yet.
>
>I'm liking how the white cherry look. It could be a nice tin glaze.
>
Dear May,
It is very nice to have you testing some of the things I am doing as well,
to see further aspect of the tests.
I have just done a control test of the stains to see if they were
contaminating each other in the same kiln load.
In one firing, I tested a tile with black stain painted at the bottom of
the glaze line, where the "White Cherry" dip ended.
The tile is a soft even pink, however slightly more flushed, closest to the
bottom edge of the glaze.
In a second firing, I tested a tile with a bottle green stain painted at
the bottom of the glaze line, where the "White Cherry" dip ended.
The tile is again, a soft and even pink. This time, I painted the stain on
top of the glaze on the back of the tile. The glaze immediately around the
outline of the painted green stain is dark red.
There were no other glazes in the kiln containing Chrome, Rutile or other
stains.
Through these tests, I have learned that stains, although fired once by the
manufacturer, fume Tin glazes.
May, I am also using the White Cherry base to get some interesting flushed
surfaces with intensely red borders around the glaze edges, on decorative
vessels.
I think this has been an interesting finding.
regards and thanks for your help in further testing,
from Alisa
going to NY on Monday and will attend the opening for the TransCultural
Tile Project, where the NYC site will be announced. Anyone in the
neighborhood can come to the opening, Thursday, June 15, between 5 -8pm, at
the Romanian Cultural Institute at 38th and 3rd Avenue.
http://www.transculturalexchange.org/index2.html
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