Ultra-High Index / Airport Grade Glass Microspheres
Description: Professional grade for airport runways, taxiways and high-speed motorways. Extremely high roundness and refractive index deliver maximum reflectivity and long service life under extreme weather and traffic conditions.
Model: GB-AH-190
Execution Standard: Exceed various international standards, ensuring high quality and performance
Key Parameters:
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Roundness (Sphericity): ≥ 90%
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Refractive Index: ≥ 1.90
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Hardness (Mohs): 7
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Particle Size:300-2000μm （Customizable）
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Specific Gravity: 2.5–2.65 g/cm³
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Moisture Content: ≤ 0.05%
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Impurities: ≤ 0.05%
Note：High refractive index glass microspheres are mainly made of silica and boron oxide as the basic glass structure.
To raise the refractive index, high-refraction metal oxides are added in large amounts:
- Titanium Dioxide ()
- Barium Oxide ()
- Zirconium Oxide ()
The higher the content of these three components, the higher the refractive index.
However, excessive addition will reduce transparency and increase the difficulty of keeping perfect roundness.
Package:
- 1000 kg, Super Bag or Sack
- 25 kg (55 lbs), Paper Bag or Woven Polypropylene Bag
