Reflective glass beads are high-performance organic materials used in road marking paints. The surface treatment reduces dust adsorption and improves cohesion with coatings, preventing tiny beads from sinking due to flotation function. This increases surface area and utilization rate by over 30%, making them essential for road safety applications.
We provide glass beads with refractive indices of 1.53, 1.72, 1.93, and more. Available in various national standards or custom size distributions as per customer requirements.
| 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 | 2.4-2.6 g/cm³ |
| Size Distribution | Oversize ≤5%, Under size ≤10% |
| Wire Diameter | 0.03-0.4 mm |
| Durability | 3-5% |
| Hardness | 6-7 MOHS; 46HRC |
| Microhardness | ≥650 kg/cm³ |
| Circularity | Round rate ≥85% |
| Appearance | Colorless, glass transparent without impurities, round and smooth |
| Application | Grinding, Road marking paint, Sand blasting |
| Lead Content | No lead content, meets American 16CFR 1303 standard |
| Harmful Substances | Lower than American 16CFR 1500 standard |
| Flammability | Not easily combustible, meets American 16CFR 1500.44 standard |
| Soluble Heavy Metals | Content ratio not exceeding ASTM F963 values |