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Precision casting: A new method in museum technology
Author(s) -
Parsons Kenneth C.
Publication year - 1973
Publication title -
american journal of physical anthropology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.146
H-Index - 119
eISSN - 1096-8644
pISSN - 0002-9483
DOI - 10.1002/ajpa.1330380318
Subject(s) - casting , silicone rubber , crania , slush , molding (decorative) , materials science , computer science , composite material , archaeology , history
By employing a version of industrial slush casting to conventional silicone rubber moulds and simultaneously applying internal pressure, accurate epoxy resin casts may be obtained, varying by less than 1.0% from the original. This is made possible by the construction of a machine which rotates the moulds through all axes. When applied to fossil crania these moulding and casting methods not only accurately reproduce the external morphology, but when access permits, simultaneously copy the endocranium. The dimensional accuracy is reproduced throughout for any given measurement. By using a variety of colouring methods these casts also produce replicas which closely approximate the appearance of the original.