Alisa og Claus Clausen on mon 21 may 01
cone 5-8 ox. with iron additives and dark stains.
Glaze test for WoDo White, cone 5-8 ox. with iron additives and dark =
stains.
Source: Alisa (revised version of Tony Martens Dolomite white).
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:
50 Neph. Syenite
25 Dolomite
6,0 Wollastonite
20 Ball Clay
All measurements measured up or down to the nearest whole decimal.
Substitutions: None
Added 10% black stain
Resulted in smooth, black matt glaze. Greenish where very thin.
Added 10% medium grey stain
Resulted in smooth, dark grey matt glaze. Rather a trendy color for =
Denmark
at the moment. I gave it our goldsmith's name, Scheelke grey, because =
he is so trendy. The shop is all grey and black.
Added 10% RIO.
Really smooth, clinging iron brown with some darker and lighter areas =
depending on application. Very traditional looking iron semi matt. =
Good feel to surface.
Added 8 RIO, 4 Rutile
Same as above, just a shade lighter. Think just the lower amount of iron =
gave this color and the rutile really had not much influence.
Added 10% Ochre
One shade lighter again than the above. Same smooth, matt surface with =
a good feel.
Best regards,
Alisa in Denmark
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