Roadex Glass Beads are manufactured as per British standard BS-6088-A and AASHTO-247-M to meet the retro reflection of all types of road marking paint e.g. Thermoplastic Hot Melt, Chlorinated Rubber (CR), Water-Based and Cold Plastic two-component to provide excellent night retro-reflectivity.
The Glass Beads are coated with silicon which can improve the coupling between glass beads and road marking materials, prevents sinking of glass beads to the bottom of material and give maximum reflection.
Chemical composition | Sodium lime glass (SiO2 ≥ 62%) |
Appearance | Clean and transparent with no obvious impurity |
Specific gravity | 2.4 – 2.6 g/cm3 |
Bulk weight approximately | 1.5 g/cm3 |
Refractive index | ≥5 |
Spherical beads | >90% |
Hardness | 5.5 – 6.0 Moh’s |
Sieve | % Passing By Mass |
---|---|
1.7 mm | 100 |
600 µ | 80 - 100 |
425 µ | 45 - 100 |
300 µ | 10 - 45 |
212 µ | 0 - 25 |
75 µ | 0 - 5 |
Packaging is available in net 25 kg bags (polythene with liner or paper bags with plastic liner). Keep bags dry, sheltered and away from moisture.