Alisa Clausen on mon 21 feb 05
Glaze test for Emmanuel Cooper nr. 97 glaze, cone 6 ox.
Glaze tested on white midrange stoneware fired in electric oxidation to =
1240c. (2264f)
Source: Cibele Toledo Krukowski, Brazil
Credited to: Emmanuel Cooper
Firing ramp:
100c p/h to 600c (212f - 1112f)
150c p/h to 1140c (302f - 2084f)=20
80c p/h to 1240c (176f - 2264f)
10 min. soak
cool down max. to 1100c (2012f)
Hold 1 hour
Shut off kiln
Recipe:
35 Feldspar
15 Cornish Stone
6 Zinc Oxide
30 Whiting
14 Ball Clay
Note: All raw materials are measured up or down to the nearest half =
decimal. =20
Colorants or additives to a 100 gram test batch are measured in percent =
to the 100 gram test batch.
Results:
A smooth, semi mat, transparent glaze. Has a sheen and is glassy where =
thickest. Where thickest, glaze crazed.
Regards from Alisa in Denmark
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