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Optimized Road Marking Thickness (1.5–2.0mm): Glass Bead Size Matching Guide​​

Release Time:2025-07-03
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For durable and high-visibility road markings, the ​​thickness (1.5–2.0mm)​​ must align with the ​​road marking glass beads​​' size and refractive properties.  Here’s a science-backed matching strategy:

​​1.  Glass Bead Size Selection​​
​​1.5mm Thickness​​: Use ​​smaller road marking glass beads​​ (300–600μm) for uniform embedment.  These beads ensure optimal light refraction without protruding, maintaining retroreflectivity in thin coatings.
​​2.0mm Thickness​​: Larger beads (850–1,180μm) enhance durability in high-traffic areas.  Their deeper embedment resists wear while reflecting light effectively.
​​2.  Refractive Index & Performance​​
​​Standard Beads (1.5 Index)​​: Ideal for 1.5mm markings in urban roads.  They balance cost and reflectivity.
​​High-Index Beads (1.57–1.93)​​: For 2.0mm highway markings, these ​​road marking glass beads​​ boost wet-night visibility by 3–4× compared to standard beads.
​​3.  Application Techniques​​
​​Drop-On Method​​: Apply beads onto wet paint for 1.5mm markings, ensuring 60% embedment for retroreflection.
​​Premix Method​​: Embed beads into 2.0mm thermoplastic for long-term reflectivity, even after surface wear.
​​4.  Durability & Cost-Effectiveness​​
Properly matched ​​road marking glass beads​​ reduce repainting frequency by 30–50%, cutting lifecycle costs.
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