Tuesday, March 2, 2010

test 10

Cone 6 Oxidation

Custer 31
Flint 25
Whiting 22
EPK 12
Talc 8
Bone Ash 2
Copper Carb 6.5

This is a stable transulent and high gloss glaze that transitions from the lip of a cup to the base with a crisp transparency to a rich deep oribe. Reminds me of the transition from shallow to deep water.

This glaze is one of 18 tests. Students of the fall 2009 semester tested in 100 g. batches, recalculated to assure glaze stability, then further tested 500 g. batches, and finally compiled a list of 18 glazes to go through a uniformed batch test. All batches of this 18 recipe set were mixed through a process of precise measurements, 60 and 80 mesh screening, were dipped on cone 04 bisque for 3 seconds, and were finally fired to a witnessed cone 6 oxidation in an electric kiln. (Firing schedules are to follow shortly).

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