Nowadays, many SMC suppliers are trying to make low density material. This new SMC formulation will be allowed engineers to get ability to design with a low specific gravity material without mechanical properties, surface qualities, etc.
Traditional SMC materials used in Class A applications have a density of 1.8 g/cm2 to 1.9 g/cm2 — around 30% less than aluminum and 75% less than steel, but relatively high for a plastic material. Because SMC parts must be thicker than steel or aluminum, actual weight savings are smaller than these figures would indicate. The classic method for reducing density in SMC is to add hollow glass microspheres, and formulations are in production for unexposed, lightly loaded components with densities as low as 1.3 g/cm2.
MDC Mould, as a leading SMC mold maker in china, has developed such compression mold using low density SMC material, and finally testing was successful. Due to this, MDC Mould has been officially qualified by OEMS such as Daimler and Audi.
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