Speedball Underglazes

Offering artists spectacular results that fire true consistently, Speedball Underglazes are unmatched in vibrancy and value. Originally formulated to perform in a wide firing range (05-6), Speedball Underglazes have been successfully fired at Cone 10. 

Suitable for use on greenware or bisque, each color produces a soft, velvety finish when left unglazed, and intensifies in richness when covered with a clear glaze. These underglazes offer a wide range of vibrant hues that can be used for detailed designs or broad coverage. Speedball Underglazes are compatible with various glaze types and firing temperatures, providing versatility for ceramic artists.

Available in 2 & 16 oz jars.