Abstract
The Silastic replica technique provides a new, unique, and simplified means for the replication and examination of fabric streaks, pile fabrics, and other surfaces. The basic technique is extremely simple and requires no special equipment. It depends on the properties of the silicone rubber, Silastic, produced by the Dow Corning Corporation. This material, received as a liquid, sets up at room temperature, upon the addition of a catalyst, to a smooth, rubbery, fine textured, nontacky film in approximately 30 min. The Silastic produces a replica of the sample fabric that will not only automatically classify the streak, but will also permit microscopical examination and photomicrography of the streak at a relatively high magnification. This material has also proved useful for replicating surfaces of other materials such as godets, draw pins, etc., which are inaccessible for microscopical examination of their surfaces.
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