Alkali-Free Glass Beads (Borosilicate Glass Beads)

Alkali-Free Glass Beads (also known as Borosilicate Glass Beads) are engineered to redefine durability and visibility in road marking applications. Designed for highways, airport runways, parking lots, and industrial coatings, our beads deliver zero degradation in retro-reflectivity and exceptional weather resistance, ensuring road safety for over 5-8 years under extreme conditions.

Core Advantages

**1. Long-Term Retro-Reflective Efficiency

• Non-Degrading Performance: Our proprietary alkali-free formula eliminates oxidation and alkali leaching, maintaining >90% reflectivity retention even after 10+ years of UV exposure and heavy traffic.

• High Refractive Index (RI ≥1.5): Maximizes light return for ultra-bright markings, visible up to 300 meters at night.

**2. Superior Weather Resistance

• Extreme Climate Durability: Withstands temperatures from -40°C to +80°C, heavy rain, salt spray, and acid corrosion, making them ideal for coastal and high-altitude regions.

• UV Stabilization: Advanced surface treatment prevents yellowing or brittleness caused by sunlight.

**3. Optimized for Global Standards

• Precision Grading: Uniform particle sizes (0.1–1.5mm) ensure seamless embedment into thermoplastic, paint, or epoxy, reducing material waste by 20%.

• Eco-Friendly: Lead-free, heavy metal-free, and fully compliant with RoHS & REACH.

Applications

• Road Markings: Highways, urban roads, pedestrian crossings.

• Critical Infrastructure: Airport runways, seaport signage, railway platforms.

• Industrial Use: Reflective safety tapes, anti-skid coatings, pipeline markers.

Technical Specifications