... substitute ability for resin Low shrinkag High-performance hollow glass bead is a kind of ultra-lightweight ... inorganic non-metallic powder with hollow microsphere, and it is a versatile and ... twenty-first century. Its true density is 0.20-0.60g/cm3 with 2-120μm in ... cementing slurry, paint and coatings, rubber, plastics, glass, steel, artificial stone, putty and other products as ...