Nd≥1.5 Reflective Glass Beads for Road Marking with 2.4-2.6g/cm3 Density and Effective Nighttime Reflection
Glass beads are high-performance, organic materials that reduce surface adsorption of dust in the air. Due to their specific coupling agent composition, these beads enhance cohesive force with coatings and prevent tiny glass beads from sinking into the coating. Their flotation functionality allows them to remain on the coating surface, providing a large surface area that increases utilization rates by more than 30%. Reflective glass beads have become an irreplaceable reflective material in road safety products.
We provide glass beads with different refractive indices: 1.53, 1.72, 1.93, and more. We can also manufacture glass beads according to various national standards or custom size distributions specified by customers.
- Chinese Standard: GB / T 24722 - 2009 No.1, 2, 3
- Korea Standard: KSL 2521 No.1 and 2
- British Standard: BS6088 Class A and B
- American Standard: AASHTO M247 type 1 and type 2
- European Standard: EN1423 and EN1424
- Turkish Standard: TS EN1423
- New Zealand Standard: NZS2009: 2002
- Taiwan Standard: CNS
- Japanese Standard: JIS R3301
- Australian Standard: A, B, C, D
| Type | Mesh | Microns Max (μm) | Microns Min (μm) |
|---|---|---|---|
| 30# | 20-40 | 850 | 425 |
| 40# | 30-40 | 600 | 425 |
| 60# | 40-60 | 425 | 300 |
| 80# | 60-100 | 300 | 150 |
| 100# | 70-140 | 212 | 106 |
| 120# | 100-140 | 150 | 106 |
| 150# | 100-200 | 150 | 75 |
| 180# | 140-200 | 106 | 75 |
| 220# | 140-270 | 106 | 53 |
| 280# | 200-325 | 75 | 45 |
| 320# | >325 | 45 | 25 |
| Project | Quality |
|---|---|
| Chemical Composition % | SiO₂ >72% |
| CaO >8% | |
| Na₂O <14% | |
| MgO >2.5% | |
| Al₂O₃ 0.5-2.0% | |
| Fe₂O₃ 0.15% | |
| Others 2.0% | |
| Refractive Index | Nd≥1.5% |
| Density | 2.4-2.6g/cm³ |
| Size Distribution | Oversize ≤5% under size ≤10% |
| Wire Diameter | 0.03-0.4mm |
| Durability | 3-5% |
| Hardness | 6-7 MOHS; 46HRC |
| Microhardness | ≥650kg/cm³ |
| Circularity | Round rate of ≥85% |
| Appearance | Colorless, glass transparent without impurities, round and smooth |
| Application | 1. Grinding 2. Road marking paint 3. Sand blasting |
| Lead Content | No lead content, reaches American 16CFR 1303 Lead content standard |
| Harmful Substances Content | Lower than American 16CFR 1500 standard |
| Flammable Fire Test | Not easy combustion, reaches American 16CFR 1500.44 standard |
| Soluble Heavy Metal Content | Metal content of soluble matter ratio solid weight rate no more than ASTM F963 corresponding value |
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