The hollow glass microsphere,which was developed in recent years, is a kind of widely used, excellent performance, new-type material. The product, made of borosilicate, is hollow sphere which grain size is 10-250 micron,wall-thickness 1-2 micron.It has much merit, such as light, low heat conductivity, higher mechanical strength and excellent chemical stability . 1st surface was treated  by the special way and the products are dispersed very easily in organic materials such as resin.

Hollow glass microsphere are widely used in composite materials such as FRP, man-made marble and man-made agate. It can decrease the weight of the composite materials and the composite materials have excellent performance of sound insulation and heat pres-ervation. And it can improve the mechanical  performance of  the composite materials such as strengthened rigidity, enhanced anti-impact property,excellent anti-breaking property and re-processing function . Hollow glass beads are applied in a wide range of fields such as aviation, space flight,new bullet train, luxurious yacht,adiabatic dope, bowing balls, in which they play a distinctive role.