3M introduced Glass Bubbles S32HS sheet molded composites (SMCs) to help automakers achieve their lighter weight goals, with composite parts weighing up to 40% and density below 1.0 g/cc. A grade A topcoat is applied. According to the company, this innovative design makes SMC an attractive option in automotive design.
3M glass bubbles are a proven lightweight technology that can be used for lightweight sealants, injection molded parts and sheet molding compounds.
3M has cooperated with many car companies for many years to provide assistance for weight reduction of vehicle parts. Instead of using traditional fillers, the company switched to such hollow glass microspheres to reduce the weight of such sheet molding compounds while maintaining their strength or aesthetics.
For the first time, 3M broke through the technical barrier of density. Compared with steel and aluminum, the company adopted a super-light sheet molding compound to enhance its competitiveness and opened up a new direction for the realization of a variety of materials for automotive applications.
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