Chapter 43. Color in Lead and Lead-Free Glazes

  1. John B. Wachtman Jr.
  1. Richard A. Eppler and
  2. Douglas R. Eppler

Published Online: 26 MAR 2008

DOI: 10.1002/9780470313916.ch43

Materials & Equipment/Whitewares: Ceramic Engineering and Science Proceedings, Volume 13, Issue 1/2

Materials & Equipment/Whitewares: Ceramic Engineering and Science Proceedings, Volume 13, Issue 1/2

How to Cite

Eppler, R. A. and Eppler, D. R. (1994) Color in Lead and Lead-Free Glazes, in Materials & Equipment/Whitewares: Ceramic Engineering and Science Proceedings, Volume 13, Issue 1/2 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470313916.ch43

Author Information

  1. Eppler Associates Cheshire, CT 06410

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1994

ISBN Information

Print ISBN: 9780470375129

Online ISBN: 9780470313916

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Keywords:

  • pigments;
  • oxides;
  • glaze;
  • eliminate;
  • certain pigments

Summary

Differences in the color of oxides or pigments in high-lead glazes and in lead-free glazes are due to attack on the pigment by lead oxide in the glaze, differences in pigment and opacifier solubility in the glazes, differences in intrinsic glaze clarity, and differences in gloss. Solubility differences when changing lead oxide content are compensated by changes in the colorant concentration. Opacity differences can be treated likewise in opacified glazes. Differences in gloss are difficult to eliminate.