Speedball Underglaze - Black

Speedball Underglaze - Black

Offering artists spectacular results that fire true consistently, Speedball’s Underglazes are unmatched in vibrancy and value. Add colour for detailed brushing and sgraffito decoration. These underglazes hold their form through the firing process. 

Formulated to fire in a range of Cone 05 - 6 (1021°C - 1243°C), these underglazes have also been succesfully fired to Cone 10 (1305°C). Suitable to be used on greenware or bisqueware, each colour produces a softer, velvety finish which intensifies in richness when coated with a clear glaze. 

Available in two sizes:

• 2oz (59ml)
• 6oz (473ml)

Special features:

• Rich colours when fired.
• Can be applied to Greenware or Bisque
• Can be used with or without clear glaze - Pictures depict true colours with and without a clear brush on glaze.

Find out more on food safety with clays and glazes here.