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Glass Microspheres for road safety
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China| USD $ 12.00 ~ 500.00 |
| EUR € 9.15 ~ 381.10 |
| GBP £ 7.65 ~ 318.64 |
| CHF SF 11.88 ~ 494.85 |
| AUD $A 12.26 ~ 510.83 |
Glass microspheres for road safety
characteristics:
|
Appearance |
Transparent, without obvious bubble or impurity |
|
Specific gravity |
2.3-2.5g/cm ³ |
|
Roundness |
90%-70% |
|
Index of refraction |
1.5-1.55 |
|
Chemical Composition |
SiO 2 >62% |
GB/T 24722-2009
Type
Diameter
（
µ
m
）
Mesh Size
Quantity of Beads
Roundness
No.1
>850
20
0%
≥
80%
850-600
20-30
15-30%
600-300
30-50
30-75%
300-106
50-140
10-40%
<106
140
0-5%
No.2
600
30
0%
≥
80%
600-300
30-50
50-90%
300-150
50-100
5-50%
<150
100
0-5%
No.3
>212
70
0%
≥
80%
<90
170
0-4%
