KSL2521 International Standard
Product Description
Glass beads are tiny spheres of glass that are used in paint and durable road markings to reflect light back to the driver in dark or poor weather conditions –improving safety and visibility. The glass beads play a very important role in the road safety .During day time the white road marking material gives the sufficient visibility as a contrast to the asphalt. In the night time contrast of the white line is not sufficient and must be improved by adding light reflective glass beads.
Technical Data
| Hardness | Specific Gravity | Bulk Density | Shape | Free Silica | Free Iron | Colour | Roundness | Reflectivity |
| 6 - 7 Mohs | 2.45—2.50 g/cm3 | ≈ 1500kg/m3 | Spherical | NIL | < 1% | Clear | ≥80% | ≥1.5 |
| SiO2 | Na2O | MgO | CaO | Al2O3 | K2O | others |
| 71-73% | 13-15 % | 3-5% | 8-10% | 0.5-2% | 0.2-0.6% | ≤2% |
| Description | Glass bead size(μm) | Glass bead quality percentage(%) |
| 1 | >850 | 0 |
| 850-600 | 5-30 | |
| 600-300 | 30-80 | |
| 300-106 | 10-40 | |
| <106 | 0-5 | |
| 2 | >600 | 0 |
| 600-300 | 40-90 | |
| 300-150 | 5-60 | |
| <150 | 0-5 |
Application
Intermix This type glass beads are premixed in marking materials on the ratio of 18-25 %( weight percentage) before application.
Drop onThis type glass beads are dropped or sprayed into the wet paint directly behind the paint sprayer.
Packing
25KG PLASTIC WOVEN BAG Using double-deck package, normally, 48bags/pallet, total 20 pallets put in one 20 ft container.
1000KG-1200KG BIG BAG Using double-deck package, the inner is polythene film and its thickness is not less than 0.5mm,normally, 20 bags put in one 20ft container.