... Adjust the density; ApplicationsThermal insulation coating, putty, plastic casting polyester, frp, SMC, radome, synthetic foam, adhesives, printed ... , audio equipments, household appliances;Filled into epoxy resin,it can reduce the material’s viscosity and improve ... , deep-sea submarine, lifeboat, etc.;Filled into unsaturated polyester. It decreases the shrinkage and water absorption of materials ...