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)
10 Lithium Carb.
80 Cedar Heights Redart
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.
Alisa in Denmark