Functional pottery made in Wisconsin

Functional pottery made in Wisconsin

Saturday, May 21, 2011

glaze fun?

It is nice to do different glaze colors. But difficult at times to get what you want. I was blessed years ago by being gifted by a Minnesota potter named Mae, who gave me some starter glazes. This was when I was just starting out and needed a palette of glazes. Since then I attended a Ron Roy workshop with my friend Pam (up at Canadore College in North Bay Ont) on glaze manipulation. Then I converted most of my glazes to use frits instead of GB. I fire at cone 6 in oxidation.
So, now I want a shiny brown, with depth and that breaks nice over the rim. Not runny, but can be thick. I took Ron Roy's Raw Sienna and increased the RIO (red iron oxide) and made up a 200 gram batch. Using Continental Clay's mid fire white stoneware I did some samples. I did a bowl with just the new brown, one with navy and the new brown, one with butterscotch and the new brown. The new brown looked beautiful on the outside, but a bit "orange peeled"on the inside. Not quite a matt, but close on just the inside. Not bad looking, but for dinnerware, I prefer the durability of a shinier surface.
Then I glazed a Paoli clay co. MTM stoneware (brown) with navy and the new brown. Good results on this but again orange peel inside. I wondered if the inside atmosphere of the bowl resulted in the duller affect with a mid fire white (not as much ocher in the clay body)as the brown stoneware, but no.
Any ideas?

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