Solid glass beads are very small glass beads, crystal clear and bright, they will become very transparent and transparent when observed under a microscope. Its diameter is generally between 44 microns and 0.8 mm. The reflective glass beads are made of road marking paint. The materials need to be approved by the Ministry of Communications and national appraisal. Vehicles driving at night need identification marks, and when light is irradiated, the driver of the paint or coating surface seed beads refracts the reflector to guide the direction. glass beads have good thermal insulation properties, and also have sound-absorbing function, so when used as thermal insulation materials, it has light weight and high efficiency, which can significantly reduce weight, achieve energy-saving thermal insulation materials, and reduce the impact of noise. Very good! With its abundant raw materials, compared with other materials, at lower prices, better cost advantages, low insulation materials production. Reflective glass beads are mainly used for road marking signs, barrier outline signs, craft beads, etc.! In addition, the glass microbead insulation material is non-toxic, harmless, non-corrosive, anti-insect bite, and will not cause harm to the human body. It is a truly green, energy-saving, economical and environmentally friendly insulation material.