Improve the road marking line contrary reflection function. When driving at night, the lamp shines on the marking line with glass bead in it, the ray of lamp is reflected back parallely. So the driver can look at the road clearly and drive safely at night.
2.Technical references
Appearance: Colourless and transparent ball, no visible bubbles and impurity.
Spherical beads:=80%(600< Sieve size< 850um,spherical beads=75%)
Density:2.4-2.6g/cm3
Refractive index:Nd=1.50
Glass bead composition :The glass bead is made of sodium and calcium. SiO2>68%
Glass Bead