Alisa Clausen on wed 2 may 07
Glaze test for 1631 Aqua, Cone 6, Redux.
Source: Ceramic Arts, Buyers Guide, 2007
Credited to: Patrick Horsley
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 30 minutes
Shut off kiln
Colorants or additives to a 100 gram batch are measured in percent to the
100 gram batch.
Amount Ingredient
47.5 Barium Carbonate
47.5 Nepheline Syenite
5 Pemco Frit 626
100 Total
Additives
4 Bentonite
9 Copper Carbonate
Unity Oxide
.224 Na2O
.062 K2O
.003 MgO
.064 CaO
.646 BaO
1.000 Total
.292 Al2O3
.045 B2O3
.001 Fe2O3
1.395 SiO2
4.8 Ratio
10.7 Exp
Results:
Mat,semi opaque, smooth aqua to dark green glaze. Darker and more opaque
where thickest. Texture on test tile showed through glaze.
Note: Redux. glaze fired in oxidation.
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