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glaze test for cast iron, cone 6 ox.

updated tue 26 jun 01


Alisa og Claus Clausen on mon 25 jun 01

Glaze test for Cast Iron, cone 6 ox.

Source: Clayart

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)

25 Epk
25 Flint
50 Frit 3134

25 RIO
5.0 Rutile

All measurements measured up or down to the nearest whole decimal.
Substitutions: Frit 623 for 3134

Resulted in a dark brown iron glaze with some bubbling and iron =
crystallization seen typically with iron oversaturation.

Best regards,
Alisa in Denmark