Alisa Clausen on wed 2 may 07
Glaze test for Cooper Mottled White, Cone 6, Ox.
Source: Lili Krakowski
Credited to: Cooper
Fired on mid fire white stoneware
Firing ramp with an electric controller is:
100c p/h to 600c (212f - 1112f)
150c p/h to 1140c (302f - 2084f)
80c p/h to 1220c (176f - 2228f)
15 min. soak
cool down max. to 900c (1652f)
Hold 30 minutes
Shut off kiln
Colorants or additives to a 100 gram batch are measured in percent to the
100 gram batch.
Substitutions in this test: Frit 3134 subbed with local Boron Frit,
Feldspar used is Forshammer, Boron Frit is subbed for Gerstley Borate. All
substitutions are done not by Mol. Wts., but gram for gram.
10 Ball Clay--Old Mine #4
Semi Mat, smooth surface, white glaze. Glaze is whiter than the average
Dolomite white glaze, however, no mottling evident.
Best regards from Alisa in Denmark