3M™ Glass Bubbles K20 

3M™ Glass Bubbles K20 have a density of 0.2 g/cc and an isostatic crush strength of 500 psi. 3M™ Glass Bubbles are engineered hollow glass microspheres that are alternatives to conventional fillers and additives such as silicas, calcium carbonate, talc, clay, etc., for many demanding applications. These low-density particles are used in a wide range of industries to reduce part weight, lower costs and enhance product properties.

The unique spherical shape of 3M glass bubbles offers a number of important benefits, including: higher filler loading, lower viscosity/improved flow and reduced shrinkage and warpage. It also helps the 3M glass bubbles blend readily into compounds and makes them adaptable to a variety of production processes including spraying, casting and molding.

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3M Advanced Materials manufactures additives and polymers used in Paint and Coatings. This company specializes in lightweight products that are weather-resistant, chemical-resistant, eliminate die buildup, and improves productivity. 3M Advanced Materials product range includes 3M™ Ceramic Microspheres W-210, 3M™ Glass Bubbles K20, 3M™ Micro Milling Media ZGC, 3M™ Stain Resistant Additive SRC-220, etc.

3M Advanced Materials

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The information presented here was acquired by UL from the producer of the material.  UL makes substantial efforts to assure the accuracy of this data.  However, UL assumes no responsibility for the data values and strongly encourages that upon final material selection data points are validated with the material supplier.