Anti-reflective and anti-soiling coatings for glass

Uncoated hydrophilic glass - Water alone cannot remove dust

from bare glass surface. More than 15% of the water is lost.

Hydrophobic coated glass - Water slides down without wetting the surface. Dust is imbibed into droplet, leaving glass clean. 99.7% of the original transparency is restored after cleaning, and 97% of water recovered