DH Glass Beads are micro glass spheres used in road marking paint for night-time retroreflection. When vehicle headlights hit the line, the beads refract and reflect light back to the driver, improving visibility up to 200–300 m.
Product: Reflective Road Marking Glass Beads
Brand: DH (Daohong)
Origin: Langfang, Hebei, China
Key specs / 技术指标:
Size range 尺寸: 75–1400 μm (available 20–200 mesh, e.g. 30# 425–850μm, 60# 300–425μm, 80# 150–300μm)
Roundness / Circularity 成圆率: ≥80% (AASHTO M247 requires min 70%)
Density 密度: 2.4–2.6 g/cm³
SiO₂ content 二氧化硅: >68%
Mohs hardness 莫氏硬度: 6–7
Application method 用法: Pre-mix 预混 18%–25% into hot-melt paint, or Drop-on surface spread 面撒 0.3–0.45 kg/m²
Embedding depth 嵌入深度: 1/2–2/3 of bead diameter
Standards 执行标准: GB/T 24722, EN 1423 / EN 1424, AASHTO M247 Type 1 & 2, BS 6088 A/B, JIS R3301
Usage scenes 使用场景:
Highway & expressway center lines 高速/快速路标线, urban road markings 城市道路, airport runway 机场跑道, parking lot 厂区停车场, port & dock 港口码头, old line re-marking 旧线复线.
Optional 可选: silane-coated water-proof grade for rain-night reflection 硅烷镀膜雨夜珠.
Packing 包装: 25 kg PP woven bag with inner PE liner, 500 kg jumbo bag, or OEM.
MOQ: 1 ton. Lead time: 7–15 days. Support third-party inspection 支持SGS/BV验货.
All data from factory batch test report. For detailed TDS and COA, contact us.
重要提示（填"重要提示"栏，防违规）
本介绍所列指标为出厂检测典型值，具体以每批 COA 为准；下单前请确认粒径标准（GB / EN1423 / AASHTO M247 / BS6088）。
