Short description of foam glass products: cellular glass. Sound absorbing cellular glass. Thermal insulation cellular glass Foam glass is new inorganic thermal insulating material with a structure of equally close cells. The composition is glass added with foaming agent. It is foamed by high temperature in foaming oven and then cooled down in coolingoven. As a result it has following characteristics: low density, low thermal conductivity, vapor impermeability, high mechanical strength but can easy to cut and also able to bear all kinds of chemical erosions except the hydrofluoric acid.