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Cone 10: Color darkens
Increased coats will produce more cracks
Cone 06 oxidation: Orange Ya Happy is a heavily pigmented
6″ posts
Samples are shown at Cone 5
Utrox Extra (Zircon) Midfire Cone 10: Color darkensZrSiO4. Zirconium silicate. Zircon. A purified, micronized glaze opacifier. 10% 15% Ultrox Extra added to most clear glazes produces a good white. Add to coloured glazes to make opaque pastels. It can be used in recipes calling for Zircopax, Superpax, etc. (alternate brands and grades differ somewhat in effective opacifying power depending on how finely ground they are; Ultrox Extra is a slightly more effective opacifier than Ultrox 500W). For more
