search  current discussion  categories  glazes - cone 4-7 

glaze test for cream rust, cone 6 ox.

updated mon 23 aug 04


Alisa Clausen on sun 22 aug 04

Glaze test for Cream Rust, cone 6 ox.Glaze tested on white midrange =
stoneware fired in electric oxidation to 1220c.

Source: Clay Times, July/August 04
Credited to:

Firing ramp:
100c p/h to 600c (212f - 1112f)
150c p/h to 1100c (330f - 2012f)=20
100c p/h to 1220c (212f - 2228f)
5 min. soak
cool down max. to 800c
Hold 1 hour
Shut off kiln

26.6 Custer Feldspar
3.3 Strontium Carb.
30.6 Frit 3134
10.6 Wollastonite
2.3 Talc
8.4 EPK
18.2 Silica

6.0 RIO
13 Tin Oxide

Note: All raw materials are measured up or down to the nearest whole =
decimal. =20
Colorants or additives to a 100 gram test batch are measured in percent =
to the 100 gram test batch.

A thick, covering semi gloss. Cream where glaze is thickest and rust =
where the glaze is thinnest. This is a breaking glaze,
with distinct color differences from thick to thin. Has shino-ey =
flecked and speckled look where thickest.

Regards from Alisa in Denmark