Alisa Clausen on thu 3 feb 05
Glaze test for Matte Glaze, cone 06-6, CT Nov/Dec. 2003
Glaze tested on white midrange stoneware fired in electric oxidation to =
1240c. (2264f)
Source: Ceramics Monthly, Nov/Dec 2003
Credited to: Used by Kathy Ruttenberg
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
Recipe:
20 Custer Feldspar
40 EPK
30 Silica
10 Ball Clay
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.
Results:
Dry, white glaze. I would call this a slip. At 1240c it is still dry =
like a clay surface. Very white. Can color with
stains and oxides. Can use over other glazes. Applied over a fired =
tile of Peter Pinnell's Seafoam. The=20
surface of the glaze moved and became very streaky. It ran over the =
bottom of the glaze border.
Regards from Alisa in Denmark
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