Some Observations on the Formvar Replica Method, with a Note on Glass Surfaces

Abstract

A study of the capabilities and limitations of the Formvar replica method has been made with more particular reference to shadow cast Formvar replicas. Observations have been made on the dependence of the deduced surface structure on the method of replication of the surface and the method of shadow casting the replica. The most suitable thickness of Formvar and evaporated metal film has been studied for various surfaces. Other replica methods have been summarized and compared with Formvar replica methods. The structure of glass surfaces, both polished and fractured, is briefly discussed on the basis of observations made from Formvar replicas.