A New Silicone Rubber Casting Material Designed for Forensic Science Application

    Volume 29, Issue 1 (January 1984)

    ISSN: 0022-1198

    CODEN: JFSOAD

    Page Count: 5


    Ojena, SM
    Criminalist, Contra Costa County Criminalistics Laboratory, Martinez, CA

    (Received 14 March 1983; accepted 4 May 1983)

    Abstract

    The need for an improved silicone rubber casting material has been evident for years. Products currently available must usually be coated or colored to make them opaque so that fine detail can be microscopically observed. A new product manufactured in Sweden has properties that make it superior to other casting materials currently available. Visibility of detail in casts made from shallow marks is dramatically increased because of its reflective properties and uniform opacity. Besides the usual tool mark applications, the material has been found useful in the comparison of firing pin impressions where lighting is a problem. It is beneficial in the examination of shiny surfaces such as extractor marks on cartridge casings and on plastic surfaces.


    Paper ID: JFS11666J

    DOI: 10.1520/JFS11666J

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    Author
    Title A New Silicone Rubber Casting Material Designed for Forensic Science Application
    Symposium , 0000-00-00
    Committee E30