Playing with cobalt washes – as an alternative to using commercial underglaze.
Tested to cone 10 on an ugly little cast vase. Very flat and matt – a success!
Looks really black on greenware
Still black after bisqueing (sadly broken by a nightclass student)
A bit of bubbling at cone 6, with clear glaze…
Nie at cone 10! A little bit of blurring. A celadon over the top
Devon Smith Ceramics 