search  current discussion  categories  glazes - cone 4-7 

glaze test for eggshell, cone 6 cm oct 2004

updated fri 4 feb 05


Alisa Clausen on thu 3 feb 05

Glaze test for Eggshell, cone 6 CM Oct 2004

Glaze tested on white midrange stoneware fired in electric oxidation to =
1240c. (2264f)

Source: Ceramics Monthly, Oct. 2004
Credited to:

Firing ramp:
100c p/h to 600c (212f - 1112f)
150c p/h to 1140c (302f - 2084f)=20
80c p/h to 1240c (176f - 2264f)
5 min. soak
cool down max. to 800c (1472f)
Hold 1 hour
Shut off kiln

9.5 Whiting
5.5 Zinc Oxide
44.5 Frit 3124
20 Custer Feldspar
7.5 Bentonite
8 Silica

9 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.

Gloss, covering glaze, medium rust brown ground, with darker brown =
speckling and slight streaking with a cream color where thickest.
Dark rust where thinnest.

Regards from Alisa in Denmark