Mortars and Pestles

Porcelain deep form mortars are glazed on the outside (except for the bottom) and unglazed inside. Oversized pestles are glazed up to the grinding surface.

Physical Properties of Porcelain:

  • Thermal Shock Resistance - average coefficient of expansion from 20° C to 200° C is 3.56 x 10-5, gradually increasing to 4.69 x 10-5 at 1050°C. Every batch of porcelain is heat tested in our factory.
  • Glaze - No softening occurs up to 1000°C, and it is extremely white.
  • Resistance to Chemical Action - Resistance to acids and alkalies is excellent, except for hydrofluoric acid.
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