Custom extrusions.

Informational literature describes the extrusion services and capabilities of the company. Unlike extruders which focus largely on the mass production of standard items, the literature explains that the company concentrates on the custom extrusion of complex profiles from traditional elastomers, such as nitrile, EPDM and polychloroprene, and from high performance materials, such as fluoroelastomers and ethylene/ acrylic elastomers. At its 15,000 sq. ft. plant, the company is said to operate an advanced extrusion line featuring a 3" cold-feed extruder with multi-range temperature controls, a horizontal in-line electric curing oven and an electric autoclave with programmable controls. Capabilities of the extrusion line are said to include large diameter extrusions in complex profiles, tolerances as close as [+ or -] .005", tighter controls over temperature and pressure, improved productivity and virtual freedom from talc and other impurities, according to the literature. The company also maintains a full array of complementary services, including rubber compound testing and development, custom mixing, design and machining of dies and molds, custom molding and cryogenic deflashing. Sixteen of the elastomers in the company's database, along with their properties and applications, are described in chart form. Among the selected elastomers are natural rubber, fluoroelastomer, silicone, fluorosilicone, urethane, nitrile, butyl, EPDM and polysulfide. The chart also lists test results or ratings for each elastomer on such properties as hardness, tensile strength, compression set, heat resistance, ozone resistance and resilience. (Pelmor Laboratories, 401 Lafayette St., Newtown, PA 18940-0309)

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