plaster casting

plaster casting, as a sculpture process, is of three kinds. One employs a waste mold, another a piece mold (both plaster of paris), and the third a gelatin mold; all reproduce the original clay or wax model executed by the sculptor. The waste mold is chipped away (wasted) to free the hardened cast, which was poured in as liquid plaster. The gelatin mold, being pliable, may with care be sprung from the cast and removed intact and used for replicas. The piece mold also may be used again, being so divided as to be readily drawn away from the undercutting of the cast without damage to either. Plaster casts are used not only for the creation of new sculptures, but also for the numerous replicas of famous marble or stone statues. The ancient Egyptians used models of plaster taken directly from the human body. The Romans cast in plaster many thousands of copies of Greek statues. In another sense of the term, plaster casting refers to the surgical technique of encasing in a plaster-of-Paris cast any part of the body in which bones are broken so that the bones may set smoothly without interference by motion, jarring, or physical shock.

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.

More on plaster casting from Fact Monster:

  • plaster casting - casting, plaster: casting, plaster: see plaster casting.
  • atrophy - atrophy atrophy , diminution in the size of a cell, tissue, or organ from its fully developed ...
  • shellac - shellac shellac, solution of lac in alcohol or acetone. In commerce the name is applied to the ...
  • James Tassie - Tassie, James Tassie, James, 1735–99, Scottish gem engraver and modeler. At first a ...
  • William Rush - Rush, William Rush, William, 1756–1833, American sculptor, one of the earliest in the ...

See more Encyclopedia articles on: Art: General

Play Hangman

Play Poptropica

Play Quizzes

Play Tic Tac Toe