Alumina Hydrate
Alumina Hydrate
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Alumina Hydrate is the hydrated form of alumina, used to give fluidity to glazes. Too little in glazes causes them to run and too much causes them to pinhole. The hydrated version of alumina alows the material to suspend better in the mixed glaze and adhere to ceramic.
Information gathered from Digitalfire Ceramic Materials Database and The Potter's Dictionary of Materials and Techniques by Frank Hamer.
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