Highways reflective glass beads ,Standard Highway Safety Marking Spheres
Production introduction
High Reflective Glass Bead is developed for the demands of the international market. All series of glass beads were upgraded to a Crystal Clear Series, which has an excellent appearance.
Main features:
1) Excellent appearance, such as clarity, transparency, slightly bluish
2) 90%+ roundness
3) Larger particle for rain line
4) Purity, uniformity of beads itself and coating on the beads
This product is suitable for premix or drop-on of the following:
1) High retroreflective traffic marking
2) Two-component traffic marking paint
3) Thermoplastic traffic marking
4) Water-based traffic paint
Technical references
|
SiO2 |
71-74 |
Specific gravity |
2.4-2.6 g/cm3 |
|
AL2O3 |
< 1.8 |
Refractive Index |
1.50-1.52 |
|
CaO |
6-10 |
Retroreflective Index |
>500 mcd. |
|
MgO |
3-5 |
Roundness Rate: |
90% |
|
Na2O |
12-15 |
Bulk density |
1.50-1.60 g/cm3 |
|
K2O |
< 1 |
Soften Degree |
720-730 |
|
Fe2O3 |
< 0.3 |
Moh's Hardness |
5.5-6.5 |
|
SO3 |
< 0.3 |
|
|
Size Specification: Crystal clear I series - Diameter 0.3 to 0.85 mm (0.012 to 0.03 inch), II series - 0.85 to 1.4 mm (0.03to 0.056 inch)
|
Country |
Specification |
|
China |
GB/T247722-2009 |
|
USA |
Modified AASHTO M247 Type I/II/III/IV/V |
|
Europe |
EN1423-1998 ; EN1424-1998 |
|
England |
BS6088-1981 |
|
Japan |
JIS R3301 |
|
Austrian |
AS/N2S 2007 ; AS/N2S 2007 D |
|
Taiwan |
CNS4342 |
|
Korea |
KSL2521 |
HR(High Reflective Glass Beads)
The Glass Beads are highly reflective 1.5 index glass beads that are 90%+ round. They are made using a unique and revolutionary manufacturing process along with the purest of raw materials.The size of a glass bead can affect retroreflectivity, especially under wet conditions. Larger beads have slightly higher retroreflectivity than standard beads under dry conditions.Retroreflective Index is more than >500 mcd.M-2.1x-1
|
Specification |
Refractive Index |
Roundness Rate |
Size Range&Cumulative retained |
|||||
|
AASHTO M247 TYPE 4 |
>1.5 |
>90% |
>2.0 |
1.7-2.0 |
1.4-1.7 |
1.18-1.4 |
1.0-1.18 |
< 1.0 |
|
0% |
0-5% |
0-20% |
40-85% |
5-40% |
0-5% |
|||
|
AASHTO M247 TYPE 5 |
>1.5 |
>90% |
>2.35 |
2.0-2.35 |
1.7-2.0 |
1.4-1.7 |
1.18-1.4 |
< 1.18 |
|
0% |
0-5% |
0-10% |
40-85% |
5-40% |
0-5% |
|||
|
AS/NZS 2009:2007 D |
>1.5 |
>90% |
>1.7 |
1.4-1.7 |
1.18-1.4 |
1.0-1.18 |
0.85-1.0 |
< 0.85 |
|
0% |
0-5% |
0-20% |
40-85% |
5-40% |
0-5% |
|||
We are one of the leading Roadmarking Glass Beads manufacturers and suppliers in China. If you are interested in our highways reflective glass beads ,standard highway safety marking spheres, welcome to buy the quality glass products made in China from our factory. Cheap and low price and excellent service are available.