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*. Trusted by some of today’s most well-known and acclaimed ceramic artists.
All colors are dinnerware safe when used and fired as directed, are lead-free and carry the AP Seal. Select below to see the full range of colors, including 12 NEW colors!
*For best results, use Speedball Clear Earthenware or Stoneware Clear Glaze with Speedball Underglazes. Speedball recommends making test tiles specific to artist’s clay body and firing schedule.