High Strength Hollow Glass Microspheres#The low density hollow glass microspheres featured on the low density materials page deliver measurable weight reduction for thermoplastics, thermosets, construction mixes, and coating systems. By incorporating these low density glass microspheres, formulators achieve lower density, improved insulation values, better flow characteristics, and improved dimensional stability in finished parts. The materials are inert, moisture resistant, and compatible with standard mixing equipment, which keeps process changes minimal. The page lists each grade with its density, particle size range, and strength class, along with shipping information and practical application notes covering paints, mastics, sealants, gypsum products, and lightweight concrete. This gives you everything needed to run trials, validate results, and scale up with confidence under the manufacturer's direct support.