Huaou foam glass (cellular glass) is composed of glass products , add the foaming agent, flux, modifier and promoting agent and other auxiliaries, forms through crushing mixing powder mixtures, into a certain mold, after preheating, melting, foaming, sintering, cooling and annealing process of lightweight inorganic porous glass state materials. It is a kind of porous glass, a uniform system of gas and solid phases. The porosity accounts for 80% ~ 90% of the total volume.