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m. barringer vitreous black slip, cone 6, ox.

updated tue 26 jun 01


Alisa og Claus Clausen on sun 24 jun 01

M. Barringer Vitreous Black 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 Borax
23 Neph. Syenite
22 Kaolin
23 Ball Clay
22 Silica

1.0 Cobalt xo.
4.5 Copper ox.
4.5 RIO

All measurements measured up or down to the nearest whole decimal.
Substitutions: None

Resulted in a semi gloss black slip. Crawled where extremely thick, but =
good fit with medium consistency and one brush application.

Best regards,
Alisa in Denmark