Alisa Liskin Clausen on tue 9 may 06
Glaze test for John Post's White, Cone 6, ox.
Source: Clayart
Credited to: John Post
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 1 hour
Shut off kiln
Recipe:
16 Kaolin EPK
21 Frit 3134 subbed local high boron frit
19 Neph. Syenite
20 Wollastonite
24 Flint
ADD
15 Zircopax
Note: All raw materials are measured up or down to the nearest half
decimal. Colorants or additives to a 100 gram batch are measured in percent
to the 100 gram batch.
Results:
Gloss, stark white glaze, even and covering.
Regards from Alisa in Denmark
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