Hollow glass microspheres with a high strength to density ratio. Lightweight but with a strength for processing survival. Potential enhancements high filler loading, reduced warpage/shrinkage, sandability and more.
3M's Specialty Additives, Dynamar PPAs (Polymer Processing Additives), are used at very low levels (200-1000 ppm) and are designed to improve the extrusion processing of polyolefins and other polymers, based on 3M's time-tested formulations and technologies.
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