Glass Microsphere
May 2007
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According to the company, it has developed the world’s first hollow glass microsphere, capable of withstanding injection molding and extrusion pressures of 30,000 psi. The company’s performance additives iM30K are being offered as an alternative to conventional additives/fillers such as glass fiber, calcium carbonate and talc. The additives are said to represent the next generation in the company’s glass microsphere technology, combining light weight with the high strength needed to survive rigorous compounding and injection molding pressures. The additives are said to be 40 percent stronger than the company’s previous leading high strength glass microspheres and, at 17 microns, are approximately half the size. 3M

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