Hollow glass microspheres are tiny hollow glass spheres that are inorganic non-metallic materials. The typical particle size range is 10-180 microns, and the bulk density is 0.1-0.25 g/cubic centimeter. It has the advantages of light weight, low thermal conductivity, sound insulation, high dispersion, electrical insulation and good thermal stability. It is a type developed in 2008. A new lightweight material with a wide range of uses and excellent performance. · Pure white color. It can be widely used in any products that have requirements on appearance color. ·Light in specific gravity and large in size. The density of hollow glass beads is about one-tenth of the density of traditional filler particles. After filling, it can greatly reduce the basis weight of the product, replace and save more production resin, and reduce product costs. · Has an organically modified (lipophilic) surface. Hollow glass beads are easy to wet and disperse, and can be filled in most thermosetting thermoplastic resins, such as polyester, epoxy resin, polyurethane, etc. · High dispersion and good liquidity. Since hollow glass beads are tiny spheres, they have better fluidity in liquid resin than flaky, needle-like or irregular-shaped fillers, so they have excellent mold filling performance. More importantly, this kind of small microbeads are isotropic, so they will not cause inconsistent shrinkage rates in different parts due to orientation, ensuring that the product is dimensionally stable and will not warp. · Heat insulation, sound insulation, insulation and low water absorption. The interior of hollow glass beads is thin gas, so it has sound insulation and heat insulation properties. It is an excellent filler for various thermal insulation and sound insulation products. The thermal insulation properties of hollow glass beads can also be used to protect products from thermal shock caused by alternating between rapid heating and rapid cooling conditions. The high specific resistance and extremely low water absorption make it widely used in the processing and production of cable insulation materials. · Low oil absorption rate. The particles of the sphere determine its minimum specific surface area and low oil absorption rate. The amount of resin can be greatly reduced during use. Even under the premise of high addition amount, the viscosity will not increase much, which greatly improves the production and operating conditions. Increase production efficiency by 10-20%.