AASHTO Standard Glass Beads

Products Details

Technical Data:
Appearance
clear,round,smooth,without any impurity
SiO2
>67%
CaO
>8.0%
MgO
>2.5%
Na2O
<14%
Al2O3
0.5-2.0
Fe2O3
>0.15
others
2.00%
specific gravity
2.4-2.6g/cm3
bulk density
1.5g/cm3
Mohs hardness
6-7mohs
HRC
48-52
Roundness
>90%
1. Light color and Slightly odor 2. Excellent affinity with wide range of fillers 3. Good flowability in RMP 4. Low Molecular weight and Low volatility 5. High transparency and High antifriction 6. Weather resistance and Anti-staining 7. Strong adhesion and Quick dryness
Glass Beads are tiny spheres of glass that used in road marking paint and durable road markings to reflect light back to the driver in darkness or poor weather conditions - improving safety and visibility. Glass beads play a very important role in the road safety.A type, Premix glass beads(18-25 %) with hot-melting paint , and then spray on road surface by road line marker.
B type, First spray road marking paint, and then drop glass beads on surface while paint is still wet.

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