HF Series Reflective glass beads is the essential material for the coating of road marking it is mainly used for road marking. The glass beads for road marking can improve the retro-reflective performance of road surface coating and increase the safety for night driving. When driving at night the lamp shines on the marking line with glass beads in it the ray of lamp is reflected back parallel. So the driver can look at the road clearly and drive safely at night.
Physical & Chemical8
8B road making glass beads
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Physical properties |
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Reflective: |
1.7 |
Color |
Colorless Transparent |
|
Mohs Hardness |
7 |
HRC hardness |
46 |
|
Real Density |
2.5g/cm3 |
Bulk Density |
1.5g/cm3 |
|
Chemical Compositions |
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|
SiO2 |
Na2O |
CaO |
MgO |
Al2O3 |
K2O |
Fe2O3 |
Other |
|
70-74% |
12-15% |
8-10% |
1-3.8% |
0.2-1.8% |
0-0.15% |
0-0.15% |
0-2% |
Specification:
|
Clasification |
Code |
Size(mesh) |
Circularity (roundness rate %) |
Mark |
|
High reflective glass beads used in rainy night |
HFA1 |
16-30 |
95 |
Specially used in the rainy nigh road marking |
|
HFB1 |
18-40 |
95 |
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|
High reflective glass beads |
HFA2 |
16-30 |
90 |
Used in High reflective road marking |
|
HFB2 |
18-40 |
90 |
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|
HFC2 |
20-80 |
85 |
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|
HFD2 |
20-40 |
85 |
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|
First Grade glass beads |
HFA3 |
16-30 |
80 |
Used in the standard road marking paint |
|
HFB3 |
18-40 |
80 |
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|
HFC3 |
20-80 |
80 |
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|
HFD3 |
20-40 |
80 |
