Anti-Soiling & Surface Protection Coatings

Extend Cleaning Intervals

Anti-soiling coatings create an invisible protective layer on solar panel surfaces that significantly reduces the adhesion of dust, dirt, and other contaminants. This means panels stay cleaner for longer, requiring less frequent cleaning while maintaining higher energy output.

Our coatings combine hydrophobic (water-repelling) and antistatic properties to address both wet and dry soiling conditions. The hydrophobic effect causes water to bead and roll off, carrying dirt particles with it. The antistatic properties prevent dust from being attracted to and settling on the panel surface.

Key Benefits

• Reduces soiling rate by up to 50% compared to untreated panels
• Extends cleaning intervals, reducing O&M costs
• Self-cleaning effect during rain events
• Maintains higher average energy output between cleanings
• Protects against minor surface abrasion
• UV stable - does not degrade under solar exposure

How It Works

The coating forms a nanoscale layer that modifies the surface energy of the glass. This creates a contact angle that causes water droplets to bead up rather than spread flat. When it rains, or during cleaning, water picks up dirt particles and rolls off the surface. The antistatic component neutralizes the electrostatic charge that typically attracts airborne dust particles.

Application Process

• Surface Preparation: Panels must be thoroughly cleaned before coating application
• Application: Spray or wipe application using supplied applicator
• Curing: Air dry for 30-60 minutes before exposure to water
• Reapplication: Typically every 12-24 months depending on conditions

Proven Results

• Field-tested at multiple utility-scale installations
• Demonstrated +2.9% energy improvement in Honduras case study
• Significant reduction in water consumption for cleaning
• Positive ROI typically achieved within first year