Foam glass is made by using flat glass as the main raw material, after being pulverized by carbon, sintering foaming and annealing and cooling. It has a porous structure with a porosity of up to 80% to 90%; and the pores are independently sealed and thus have good thermal insulation properties. Foam glass has special advantages as a heat insulating material: it has high mechanical strength and can play the role of moisture proof, fireproof and anti-corrosion; it is not only used for heat preservation but also for cold preservation. In addition, it has good processability and can produce colored articles. Its use temperature range is (-200 ~ 400 ° C).

The product is divided into two types of 150 and 180 according to the density of foamed glass products. The product with density less than or equal to 150kg/m3 is 150, and the product with density between 151 and 180kg/m3 is 180; The shape is divided into flat plates and shells, codenamed P and G, respectively.

Foam glass can be used as insulation for building envelopes, and is also suitable for insulation of dust collectors, cold stores, etc. It can also be used in building sound insulation projects.