I have also used the early spheres as 'tests': a) is made from ES40 and carved, the glaze coloured with cobalt and copper. b) is craft crank and impressed with a printing block. I have used number of different test glazes; those shown here are mainly copper and iron these have been sponged on and fired to 1260 in the electric kiln (oxidation). the results are pretty patchy, partly because of the difficulty getting good cover into the texture with sponging.
Next time, while I am in the process of trying things out I will experiment with brushing. This method has always served me well with commercial glazes containing a thickener, but may not work so well without.
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AuthorI am indulging my passion for ceramics by undertaking studies for an MA at UCLAN Archives
August 2021
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