High Index Glass Beads (RI ≥ 1.7)
High Index Glass Beads (RI ≥ 1.7)
High index glass beads with refractive index ≥1.7 are advanced reflective materials used in road marking systems and traffic coatings. They significantly enhance retroreflection performance, improving nighttime driving safety.
Product Details
High index glass beads (refractive index RI ≥ 1.7) are high-performance reflective materials designed for advanced road marking systems and traffic safety applications. When embedded or surface-applied in road marking coatings, they significantly enhance retroreflective performance, allowing vehicle headlights to be efficiently reflected back to the driver and improving nighttime visibility.
When driving at night, light from vehicle headlights hits the road markings containing glass beads and is reflected back toward the driver, clearly indicating road direction and improving overall traffic safety. As a result, high index glass beads have become one of the most important reflective materials in modern road safety engineering and are widely adopted by transportation authorities worldwide.
Based on refractive index, glass beads can be classified into low (1.50 ≤ RI < 1.70), medium (1.70 ≤ RI < 1.90), and high (RI ≥ 1.90) categories. High index glass beads provide stronger light reflection efficiency and are suitable for high-standard road applications such as highways, airports, tunnels, and urban traffic systems.
In addition, some high-performance glass beads are coated with a uniform layer of aluminum on the surface to further enhance light reflection intensity. These advanced reflective beads are widely used in reflective road paints, traffic marking coatings, and safety signage systems where maximum visibility is required.
With excellent optical performance, durability, and weather resistance, high index glass beads play a critical role in modern traffic safety infrastructure and intelligent transportation systems worldwide.
FAQ
Industrial glass beads are widely used in road marking, sandblasting, grinding, filtration, filling, and construction applications. They provide functions such as reflection, surface cleaning, dispersion, insulation, and lightweight filling.
Glass beads are commonly used in infrastructure, transportation, water treatment, chemical processing, construction materials, coatings, and industrial manufacturing industries worldwide.
We supply a full range of glass beads, including road marking glass beads, sandblasting glass beads, grinding glass beads, hollow glass beads, high index reflective beads, filtration beads, and color glass beads.
Yes. Precise glass beads are widely used as filtration media in water treatment systems due to their stable chemical properties, uniform particle size, and long service life.
Different glass beads are designed for different applications, such as reflective beads for road marking, abrasive beads for surface treatment, hollow beads for insulation, and precise beads for filtration and industrial use.
Yes. We can provide customized particle sizes and specifications based on different industrial requirements such as filtration systems, coating applications, and surface treatment processes.
Yes. Our glass beads are non-toxic, chemically stable, and environmentally friendly, making them suitable for sustainable construction, industrial, and environmental applications.






