Re-yingcai® Self-Cleaning, Dust-Resistant, High-Transmittance and Wear-Resistant Nano Coating for PV Glass is a multifunctional inorganic protective treatment developed by Yingcai New Material for outdoor PV modules. Its ultra-thin, highly transparent film does not obstruct light transmission. A strong hydrophobic lotus-leaf effect allows windblown sand, dust and rainwater stains to detach with rainfall, while high hardness, wear resistance, UV resistance and weatherability provide durable outdoor protection. The coating reduces power loss caused by dust accumulation and lowers solar-plant cleaning and O&M costs. It is suitable for both production-line spraying and manual on-site application.
Product Features
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Self-Cleaning PerformancePhotocatalytically decomposes organic contaminants while rainwater washing enables maintenance-free cleaning, reducing PV and curtain-wall cleaning frequency by more than 70%.
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SuperhydrophilicityA water contact angle below 5° allows water to spread rapidly and efficiently carry away dust, reducing contaminant buildup.
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High Light TransmittanceLight transmittance loss below 2% helps ensure that PV light-absorption efficiency is not adversely affected.
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Strong Weather ResistanceResists ultraviolet exposure and temperatures from -40°C to 150°C for reliable performance in extreme climates.
Product Parameters
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Product Model YCB01007R Solid Content 11±1% pH Value 6.0–8.0 Curing Conditions Surface-dry in 15–30 minutes at room temperature; fully cured in 24 hours Light Transmittance Gain +0.5% to +1.2%, with no haze degradation Water Contact Angle ≥110°, strong hydrophobic self-cleaning Abrasion Resistance No scratches after repeated steel-wool rubbing Film Thickness 50–100 nm Sealed Storage Period 6 months in original sealed packaging in a cool, dark place
Efficient, Long-Lasting Self-Cleaning
The coating combines nanoscale hydrophobic materials with photocatalytic technology to create an ultra-smooth surface that repels water and contaminants. Rain or dew beads up and rolls away, carrying dust and organic residues from the surface. Under ultraviolet light, photocatalytic components decompose remaining organic matter to support long-term self-cleaning performance across different climates, substantially reducing PV glass maintenance costs and helping improve power output.
Significant Dust-Resistance Performance
Electrostatic repulsion and a low-surface-energy design reduce the adhesion and accumulation of dust particles. The nanostructure creates a fine barrier that prevents small particles from embedding in the glass, keeping the surface cleaner even in dry or windy conditions. Long-term testing shows a dust-accumulation reduction of more than 70%, helping prevent shading-related power loss and reducing the need for frequent manual dust removal.
Outstanding Light-Transmittance Enhancement
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Highly transparent nanomaterials optimize the refractive index of the coated glass and increase light transmission to above 98%. By reducing surface reflection and scattering, more sunlight reaches the PV cells for improved energy conversion. The multilayer structure accommodates different wavelengths and incident angles, supporting higher power output and particularly strong performance under low-light conditions.
Durable and Reliable Wear Resistance
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The coating combines high hardness with toughness, and its nanocomposite structure resists physical abrasion and chemical attack. Testing indicates a hardness above 9H together with resistance to windblown sand, rain and UV aging, supporting a service life of more than 10 years. A surface self-repair mechanism can recover from minor scratches, helping maintain long-term protection and reduce replacement frequency.
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