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Case Studies

Co-Injection Molding Analysis

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.

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The Madison Group

The Madison Group is the recognized leader in plastics engineering. Over three decades, The Madison Group has focused on polymeric materials. We understand how these materials behave, how to properly design with them, how they are processed, and the numerous manufacturing steps required to produce a successful product.