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Refraction in a Perspex block


[ICI, England] A trademark for transparent acrylic sheeting made from Polymethyl methacrylate. The equivalent U.S. material is sold as Plexiglas®.

Physical and Chemical Properties

  • Can be electrostatic.
  • More easily scratched than glass.

Resources and Citations

  • G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 11
  • Hermann Kuhn, Conservation and Restoration of Works of Art and Antiquities, Butterworths, London, 1986
  • Marie Svoboda, Conservation Survey Index, unpublished, 1997

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