Alisa and Claus Clausen on fri 6 oct 00
Source: Clayart Archvies =20
Tested on roughly grogged, white, mid range stoneware, fired to 1220c. =
oxidation.
Receipe
31 G.B.
14 Talc
20 Soda Feldspar
5 EPK
30 Flint
Add
2% Cobalt ox.
Subbed local spar for soda spar
Results were a stable, dark blue gloss. It went semi matt with some =
light blue speckling where very thick.
Test No. 2
Same receipe as above with same subs. plus subbed Colemanite for G.B.
Almost identical results, with more semi matt, lighter blue markings =
throughout glaze surface, both thick and thin.
Where absolute thinnest, a dark blue gloss.
Best regards,
Alisa in Denmark
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