1% and 2% copper carbonate in a cone 6 transparent

Tuesday 28th July 2015

The recipe, G3806B, also contains 2.5% insight-live.com/material/1642">tin oxide. The clear base is the best we found to host the copper blue effect. It was adapted from one found online, we recalculated that to source the Al2O3 more from clay and less from feldspar (to get better slurry properties). Later work was done to try to reduce the thermal expansion of this, but successes in doing that came at a loss in blue color. The COE of this simple enough to fit many bodies without crazing, porcelains having low silica percentages are least likely to fit.

Pages that reference this post in the Digitalfire Reference Library:

Copper Carbonate, Copper Carbonate Basic, Concentrate on One Good Glaze

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