Mirco-glass beads are a new type of material with a wide range of uses and special properties developed in recent years. The product is made of borosilicate raw materials through high-tech processing. The particle size is 10-250 microns, and the wall thickness is 1-2 microns. The product has the advantages of light weight, low thermal conductivity, high strength, good chemical stability, etc. Its surface has been specially treated to have lipophilic and hydrophobic properties, and it is very easy to disperse in organic material systems.