The Madison Group Info@madisongroup.com madisoongroup.com What Was Needed? A plastic retention clip was required in a commercial appliance. Based upon the application requirements, including impact resistance, polycarbonate appeared to be a good material choice. However, the clip also needed to withstand a continuous loading of 6,400 psi, thus creep failure was a concern. The useful life requirement for the product was stated to be 2 years. The Madison Group 2615 Research Park Drive Madison WI, 53711 USA Ph: (608) 231-1907 madisongroup.com Evaluation Dynamic mechanical analysis (DMA) was used to evaluate the polycarbonate resin being considered. Initially,

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