1. Colourless and transparent ball 2. different standard such as:BS,EN,AASHTO,KS,JT etc. 3. competiti price

1.GENERAL DESCRIPTION

When driving at night, the headlights light on the reticules of glass beads, the glass beads can make the light of car-light to reflect parallel, and make the driver distinguish the direction in order to improve driving safety. For glass beads of various gradations, when the top big sphere is worn, the appeared bottom small sphere can be used continuously. Grade A product is generally used. 

2.Technical references

Appearance: Colourless and transparent ball, no visible bubbles and impurity.

Spherical beads:80%min(600< Sieve size< 850um,spherical beads≥75%)

Density:2.4-2.6g/cm3

Refractive index:Nd  1.50min

Glass bead composition:The glass bead is made of sodium and calcium. SiO2 68%min

  

line marking glass microsphere