Alisa og Claus Clausen on mon 25 jun 01
Glaze test for M. Barringer Redart Slip. 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:
10 Lithium Carb.
10 Spodumene
80 Cedar Heights Redart
Add
2% RIO
All measurements measured up or down to the nearest whole decimal.
Substitutions: Oldenwalder clay for Cedar Heights Redart.
Resulted in a bubbling iron red slip with crators throughout.
Best regards,
Alisa in Denmark
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