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Speedball Underglazes

Speedball Underglazes

Offering artists spectacular results that fire true across the vast majority of the color range consistently, Speedball’s Underglazes are unmatched in vibrancy and value.  Originally formulated to perform in a wide firing range, 05-6, Speedball’s Underglazes have been successfully fired at Cone 10.  Suitable for use on greenware or bisque, each color produces a softer, velvety finish when left unglazed, and intensifies in richness when covered with a clear glaze. 

All colors are dinnerware safe when used and fired as directed, are lead-free.

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