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glaze test for mary barringer sheen-o glaze, cone 6, ox.

updated tue 26 jun 01

 

Alisa og Claus Clausen on mon 25 jun 01


Glaze test for Mary Barringer Sheen-O glaze, cone 6, ox.

Source: Ceramics Monthly, April, 2001

Tested on light, mid-range stoneware, with iron flecks. Fired to 1215c =
(22219) oxidation, at this ramp:
100c to 600c 212f to 1112f
150c to 1100c 300f to 2012f
100c to 1220c 212f to 2228f
soak at 1220c for 30 minutes =20
cool down 100c per hour to 900c (212f/1652f)=20
soak at 900c for one hour
shut off and cool down (aprox. 40 hours)

Recipe:
2.9 Soda ash
4.9 Gerstely Borate
22.8 Spodumene
54.5 Nepheline Syenite
14.9 Ball Clay

Add
0.5 Chrome

All raw materials, with the exception of colorants, measured up or down =
to the nearest whole decimal.
Substitutions: None

Resulted in a light orangey and white shino looking glaze, glossy but =
not glassy. Crazed on my claybody.

Best regards,
Alisa in Denmark