... insulating and sound-insulatingLower conductivity makes it widely used in producing heat-insulation and sound-insulation materials and Equipments. ... cenospheres can maintain their integrity while they are utilized in Water,organic chemicals acid,alkali and other solvents.4 ... and man-aade micro spheres.3. Applications:Widdely used in building material,plastics,ceramic,oil field,beton,well drilling,paint ...