Reflective glass beads for road marking EN 1424 DROPING ON/ EN 1423 MIXING
Glass beads was made from glass sand which crushed by glass blocks and plate glass,fused by high tempreture in the electric furnace.
Glass beads is in low heat conduction,nice strength,good chemical stability.
Glass beads can be divided into below types based on it’s applications
1.Road marking glass beads
2.Sandblasting glass beads
3.Filling/gringding glass beads
4.Precise glass beads
Typical chemical specifications
| SiO2 | Na2O | Fe2O3 | Al2O3 | MgO | CaO | Others |
| 71.0% | 14. 0% | 0.1% | 2.0% | 4.0% | 7.0% | 1.6% |
Physics specifications
| LPD | RD | Moh’s | HRC | RI | Roundness | Magnetics |
| 1.6g/cm3 | 2.5g/cm3 | 6-7 | 46 | 1.5min | ≥80.0% | ≤0.1% |
SIZES
- Road marking glass beads
CHINA Standard —JT-1/JT-2
UK Standard –BS6088A/ BS6088 B
USA Standard—AASHTO-M247-I / AASHTO-M247-II
Sough Korea standard–KS1/ KS2
Europe standard—EN 1424 DROPING ON/ EN 1423 MIXING
- Sandblasting glass beads
| MESH | Diameter range(um) |
| 20-30 | 850-600 |
| 20-40 | 850-425 |
| 40-60 | 425-250 |
| 50-70 | 300-200 |
| 60-100 | 250-150 |
| 80-140 | 180-100 |
| 100-140 | 150-100 |
| 100-200 | 150-70 |
| 140-200 | 100-70 |
| 140-270 | 100-50 |
| 200-325 | 70-45 |
| <325 | <44 |
3.Filling/Grinding glass beads
0.4-0.6mm 0.6-0.8mm 0.6-1.0mm 0.8-1.0mm
0.8-1.2mm 1-1.5mm 2-3mm 3-4mm 4-5mm 5-6mm
- Precise glass beads
Size：2mm 3mm 4mm 5mm 6mm 7mm 8mm 9mm 10mm 11mm 12mm 13mm 14mm 15mm 16mm
Precisions：±0.02mm/0.03mm/0.05mm/0.2mm/0.3mm
Application details
- Road marking glass beads
Can be divided into dropping on type and mixing type；
Using for roading and to raise the safety of night driving by it’s reflective performance.
Dropping on glass beads can be directly dropping on the road marks；
Mixing glass beads need to use together ；
2.Sandblasting glass beads
Mainly using for the surface sandblasting and shot blasting of metals,glass,rubber and plastics,acrylic,and can avoid the workpieces be damaged.
- Filling/Grinding glass beads
Mainly using as filling media of weighted-blanket,plush toys,eyeshade,medical package, uniform filled and good textures
Meanwhile can be used as grinding media for paint,oil,coating,pigment,etc.
- Precise glass beads
High precision and roundness，can be used as media for chemical ink,wine bottle cap,water pum valve,cosmetics valve,machinery bearings.
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