Cenospheres are
lightweight,inert,hollow,nonmetallic spherical materials,composed
largely of silica (SiO2) and alumna (Al2O3).They have good
flowability,ultra low
density,nonpoisonous,corrosion-resisting,thermal stable,high
partial strength,good insulating,sound isolating,low water
absorption,low thermal conductivity that are extensively used in
the rubber, equipment of glass fiber reinforced plastic,
polyester,plastic as filler.Cenospheres also are utilized for
coating,paint and oil industry.Cenospheres not only can reduce the
weight of end products and cost but also increase the
strength.�Cenosphere is widely used as filler
material in various industries such as Oil drilling industry,
cement, rubber, plastics, resins, concrete, lightweight
construction prefabrications, etc. Characteristics Lightweight,
Free-flowing, Gray or Off-white Color, Spherical, Inert, heat
resistant and fire proof;
