Cone 05. Although AMACOŽ
Opalescent Glazes may be used on any AMACOŽ clay, they develop their
greatest opalescence and most interesting textures when applied over
red burning AMACOŽ Indian Red Clay No. 67.
Most of the AMACOŽ Opalescent Glazes have a high gloss with an
iridescence similar to mother-of-pearl. Best results are achieved with
three or four applications of glaze. On textured ware, the glaze flows
thin on relief and thick in incised areas, giving an added dimension on
the surface.
AMACOŽ Opalescent Glazes can be used very effectively in Raku firing.
We suggest controlled experimentation with Opalescent glazes (for
example O-42, O-23 at Cone 5 (2205°F, 1207°C). When fired at this
temperature on the inside of a stoneware bowl, the glaze flows to
produce a variegated bottom and thins at the rim to expose more of the
clay body.
AMACOŽ Opalescent Glazes are supplied in liquid, ready-to-use form in
pint jars. They are applied on a mature Cone 04 (1971°F, 1077°C) bisque
by brushing, dipping or pouring. On red bisque, these glazes should be
applied rather heavily, and a slow rather than fast firing is best.
Firing range is from Cone 05 (1911°F, 1044°C;) to Cone 03 (2019°F,
1104°C). Recommended firing temperature is Cone 05 (1911°F, 1044°C).
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