Glass Beads
Glass Beads as per BS 6088 standard is used in Thermoplastic Road Marking material.
Gradation - The glass beads shall meet the gradation requirements for the two types as given in Table.
|
Sieve Size |
Percent Retained |
|
|
BS6088A |
BS6088B |
|
|
1.18 mm |
0 to 3 |
- |
|
850 micron |
5 to 20 |
0 to 5 |
|
600 micron |
- |
5 to 20 |
|
425 micron |
65 to 95 |
- |
|
Below 425 micron |
0 to 10 |
- |
|
300 micron |
- |
30 to 75 |
|
180 micron |
- |
10 to 30 |
|
Below 180 micron |
- |
0 to 15 |
Roundness - The glass beads shall have a minimum of 70 per cent true spheres.
Refractive Index - The glass beads shall have a minimum refractive index of 1.50.
Free flowing properties - The glass beads shall be free of hard lumps and clusters and shall dispense readily under any conditions suitable for paint striping. They shall pass the free flow-test.
Features:
- Contain high quality glass beads creating Retroreflective effect
- Skid resistant
- Fast setting and dry within minutes
- Retain their texture for more than two years, making their life cycle more cost effective than conventional paints