Details
glass bead for road marking is ND1.5 glass bead. When traffic light shines onto the glass bead, it can reflect the light to the eyes of drivers.
Road marking glass beads can make the road marking brighter and enhance driving safety at night.
Based on size diameter, there is drop-on glass bead and intermix glass bead .
glass bead for road marking
Technical Data
|
Composition |
SiO 2-CaO-Na 2O GLASS |
|
Refractive Index |
1.5-1.6Nd |
|
Specific Gravity |
2.4-2.6g/cm3 |
|
Color |
Colorless |
|
Form: |
transparent ball, no visible bubbles and impurity |
|
Size |
50um - 5000um, can be provided based on customer requirements |
|
Roundness |
≥ 70-85% |
|
Standard |
BS6088A ,BS6088B JT/T446-2001 International Standard DROP-ON and PREMIX |
Blasting Glass bead ,grinding glass bead, glass bead for jetting have the same composition and can be provided also.
|
ITEM |
ND1.5 BEAD(HM) |
|
Hardness (kgf/mm2) |
425 |
|
Abrasion (%) |
3.14 |
|
Specific Gravity(20/20ºC) |
2.52 |
|
Compressive Strength |
16.64 |
|
Refractive Index |
1.5-1.64 |
|
Specific Heat (cal/g ºC) |
0.81 |
|
Thermal Conductivity (kcal/m.hr. ºC) |
0.65 |
|
Softening Point(ºC) |
720 |
|
Thermal Expansion Coefficient (ºC) |
8.5×10-6 |
|
Resistence to weather |
No change |
| Contacts ： | Li Sir |
|---|---|
| Phone ： | 13706417022 |
| Email ： | jngreat@foxmail.com |
| QQ ： | 1344607103 |
| Skype ： | greatlite |
| Wechat ： | 13706417022 |
| Address ： | 25# IFC，CBD， Jinan， China |
