Overview of HR Glass Beads
HR glass beads are advanced materials known for their superior retroreflective properties, making them highly effective in various applications. HR glass beads are made from special optical glass to meet the growing demand for higher retroreflective materials. These beads are meticulously engineered to maximize their ability to reflect light efficiently, ensuring enhanced visibility and safety in many conditions especially in wet night condition. Designed with advanced optical properties, HR glass beads can achieve more than 600MCD/lx/m2 on the road markings.
Specifications and technical data
Parameter | Details |
---|---|
Composition | High-quality optical glass |
Appearance | Transparent, colorless |
Shape | Spherical |
Refractive Index | 1.5 – 1.9 |
Size Range | 53 – 1180 microns |
Roundness | ≥90 |
Hardness | 6-7 Moh’s |
Coating Types | Moisture proof coating, Flotation coating, Adhesion coating |
Application Method | Mixed with the paint or drop on the top of road marking paint |
Durability | Maintains reflectivity for 1 – 3 years depending on use |
Standards | Exceed various international standards, ensuring high quality and performance |
Applications of HR Glass Beads
Road Markings
- Lane Markings: Enhances visibility of lane dividers and traffic lanes.
- Highways: Provides clear guidance and safety measures for high-speed traffic.
- Airport Runway: ensure clear visibility and guidance during plane takeoff and landing.
Traffic Signs and Signals
- Traffic Signs: Increases visibility of regulatory, warning, and informational signs.
- Traffic Signals: Improves visibility of traffic signals for safe intersection navigation.
Frequently Asked Questions
Q: What are HR glass beads made of?
A: HR glass beads are made from special optical glass, and formed into spherical shapes.
Q: Where are HR glass beads commonly used?
A: They are used in road markings, airport runways, parking lots, and various industrial safety markings.
Q: What sizes do HR glass beads come in?
A: Sizes typically range from 53 to 1180 microns, allowing for tailored applications.
Q: What effect can HR glass beads achieve?
A: HR glass beads can achieve a retroreflectivity value of over 600MCD.
Q: What standards do HR glass beads meet?
A: They meet or exceed international standards such as EN 1423, AASHTO M247 and many other standards.