Alisa Clausen on tue 7 jun 05
Glaze test for Zakin TMH4 cone 6, ox.
Glaze tested on white midrange stoneware fired in electric oxidation to =
1220c. (2228f)
Source:
Credited to: R. Zakin
Firing ramp:
100c p/h to 600c (212f - 1112f)
150c p/h to 1140c (302f - 2084f)=20
80c p/h to 1220c (176f - 2228f)
15 min. soak
cool down max. to 1100c (2012f)
Hold 1 hour
Shut off kiln
Recipe:
46 Soda Spar
10 Wollastonite
18 Ball Clay
8 Gerstely Borate
18 Zircopax
------------------------
100 gram
ADD
2 Cobalt
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:
Underfired. Dry, medium blue in color, rough, underfired mat surface.
Regards from Alisa in Denmark
| |
|
