Expanded perlite is a kind of inorganic silicate material, which is non-toxic, tasteless, acid and alkali resistant. It is formed by high-temperature expansion above 1000 ℃, and widely used in dozens of fields such as building energy conservation and heat preservation, sound insulation, soil improvement, soilless cultivation, low-temperature storage and transportation, food, medicine, filtration, high refractory materials, military industry, electric locomotive, etc.

It is used for building wall insulation, roof insulation, backfilling, etc. It has good thermal insulation performance and sound insulation effect, and has the characteristics of non-combustion, non-toxic and odorless. It is a natural environmental protection material and can also be used for various building materials and diatom mud , Cultural stone, component production.