List of Pottery Terms - D

D

• Deairing. The removal of entrapped air from a mass or slurry, often by the application of a vacuum. (W)

• Deflocculate. To separate agglomerates in a slurry by chemical means, and so decrease viscosity. (W)

• Delftware. A light-coloured pottery body covered with a tin glaze with overglaze decorations in cobalt on the unfired glaze. Developed in Holland to imitate Chinese blue and white porcelain.

• Dipping. Glazing pottery by immersion in a glaze suspension.

• Dunt. A crack caused by thermal shock, especially if ware cooled too rapidly after it has been fired. (W)