Chapter 11. Processing Dynamics of Plaster

  1. John B. Wachtman Jr.
  1. William M. Lynch

Published Online: 26 MAR 2008

DOI: 10.1002/9780470314616.ch11

A Collection of Papers Presented at the 96th Annual Meeting and the 1994 Fall Meetings of the Materials & Equipment/Whitewares/Refractory Ceramics/Basic Science: Ceramic Engineering and Science Proceedings, Volume 16, Issue 1

A Collection of Papers Presented at the 96th Annual Meeting and the 1994 Fall Meetings of the Materials & Equipment/Whitewares/Refractory Ceramics/Basic Science: Ceramic Engineering and Science Proceedings, Volume 16, Issue 1

How to Cite

Lynch, W. M. (1995) Processing Dynamics of Plaster, in A Collection of Papers Presented at the 96th Annual Meeting and the 1994 Fall Meetings of the Materials & Equipment/Whitewares/Refractory Ceramics/Basic Science: Ceramic Engineering and Science Proceedings, Volume 16, Issue 1 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470314616.ch11

Author Information

  1. United States Gypsum Company, Chicago, IL

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1995

ISBN Information

Print ISBN: 9780470375341

Online ISBN: 9780470314616

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Keywords:

  • plaster;
  • water;
  • soaking;
  • mixing;
  • drying

Summary

Slip-cast mold quality is dependent upon good plasters and good plaster processing techniques. This paper reviews the effects of water purity, slurry temperature, soaking, mixing, and drying upon mold and plaster performance. A brief analysis of the effect of consistency (water/plaster ratio) on strength and absorption is also presented. The subject matter is intended for shop floor personnel. Consistent results can be had through attention to plaster processing. Once uniform shop practices are in place, users can look to their plaster suppliers for product modifications that enhance mold performance.