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Duncan Concepts Underglaze

The easiest way to add colour to bisque is with Duncan Concepts Ceramic Underglazes for Bisque. With an easy-to-use colour chart featuring light, bright and dark colour values, anyone can expertly enjoy the excitement of creativity.

Suited to both translucent or solid coverage, simple designs or the detailed majolica technique, Duncan Concepts Ceramic Underglazes for Bisque makes the Ceramic Arts experience quick and easy!

Concepts Colours are available in easy to use, cost effective squeeze bottles and are most suited to application on bisque.

To get started why not try our Simple Watermelon Bowl Project?

Firing range: cone 06 to cone 6, refer to Mid Range Performance Index below for expected firing results 

Application Instructions

  1. Apply to shelf cone 04 bisque.
  2. Fire to shelf cone 06.
  3. Clean up with water.
  4. For clear glaze application, brush-on or dip clear glaze over Concepts.
  5. Stilt and fire to shelf cone 06. Water clean up.


  1. For Majolica, apply Concepts designs over 3 coats of SN 352 White Satin.
  2. For quick and easy solid coverage, try the drop 'n fill technique.  Let dry.


Concepts Underglazes for Bisque do contain a small 'glaze' component. Once fired, Concepts result in a slightly glossy finish. Pieces require stilting and should not be stacked during firing. Clear glazing with a glaze such as Pure Brilliance is recommended to ensure Food safety.