Glass Bead For Road Marking By Jinan Great Material Co., Ltd.

The Glass beads are used for road marking paints and thermoplastic to provide excellent night retro-reflectivity. When the headlight shines on the road line, the light is reflected by the glass beads, and then the driver can drive the car in the correct way.
Usually, the rate of glass beads in paint is 15%--25%,used for intermix and drop-on , we can produce all kinds of glass bead from 30um to 3000um,including uncoated glass bead ,coated glass bead with silicone or silane according to the AASHTO M247, BS6088, EN1423&1424, AS2009, and customer requirements.

The specific gravity: 2.4-2.6(g/cm3)
Refractive index: 1.5-1.6.

BS6088CLASS A (INTERMIX)
Sieve(um):Retained (%)
>1180: 0--3
1180--850: 5--20
850--425:65--95
<425: 0--10
(Roundness: 70% or better)

BS6088 GLASS B (DROP-ON)
Diameter(um)Retained (%)
>850: 0--5
600--850 5--20
300--600 30--75
180--300 10--30
<180 0--10
(Roundness: 80% or better)
Technical references
Appearance: Colourless and transparent ball, no visible bubbles and impurity.
Spherical beads: 80%(600< Sieve size< 850u A spherical beads 75%)Glass bead Composition: The glass bead is made of sodium and calcium. SiO2 68%