... in paint, rubber, plastics, FRP, artificial stone, putty and other products as filler and weight reducing agent. It ... applications are in the fields of thermal insulation coating, putty, plastic casting polyester, FRP, SMC, radome, synthetic foam ... of filler, and effectively reduces VOC indicators, and costs as well. Low shrinkage and warpage Hollow glass microspheres have the feature of isotropism and ...