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Glass-Reinforced PPs Pack Extra Muscle.

A new line of glass-reinforced PP compounds boasts higher impact and tensile strength, better stiffness, and higher HDT than standard homopolymers with similar glass loadings. These high-performance PP compounds from DSM Engineering Plastics, Evansville, Ind., are said to bridge the gap between

traditional PP and engineering plastics like glass-filled nylon. They are aimed at automotive under-hood components and interior/exterior trim, as well as appliance components such as handles, levers, slides, and motor brackets.

                   NEW REINFORCED PPs BEAT THE STANDARD
                        Std. PP   High-Perf. Std. PP   High-Perf.
                        Homopol.  PP         Homopol.  PP
                        30% Glass 30% Glass  40% Glass 40% Glass
Tens. Str., psi         12,000    14,160     13,000       16,900
Flex. Str., psi         16,000    19,100     18,000       21,400
Notched Izod, ft-lb/in. 1.7       1.9        1.7            2.06
HDT, F @ 264 psi        305       318        305             321

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