The Madison Group Info@madisongroup.com madisoongroup.com The Problem An injection molder needed to determine the feasibility of using a co- injection molding process to reduce the manufacturing cost of a plastic chair. The chair was to be manufactured using a virgin talc-filled polypropylene for the skin resin, and a regrind talc-filled polypropylene for the core resin. In order to justify the higher cost of building a co- injection mold the chair had to consist of at least 30% regrind. The Madison Group 2615 Research Park Drive Madison WI, 53711 USA Ph: (608) 231-1907 The Evaluation The molder hired The Madison Group to assist in evaluating the feasibility of

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