Re-yingcai® Dust-Resistant Hydrophilic Self-Cleaning Nano Coating for Solar PV Plants is an innovative coating independently developed by Dongguan Yingcai New Material specifically for photovoltaic power stations. Nanoscale hydrophilic materials form a uniform transparent film on PV modules to improve dust-removal efficiency. Water spreads evenly across the surface as a continuous film, surrounds deposited dust and removes it through rainfall and gravity-assisted washing. This reduces the impact of dust accumulation on power output, significantly lowers manual cleaning frequency and O&M costs, and is particularly suitable for solar plants in arid, windy, sandy and industrially polluted regions.
Product Features
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Hydrophilic Self-CleaningThe hydrophilic nanofilm rapidly spreads water into a continuous film that surrounds dust and enables automatic rainwater washing, reducing surface dust adhesion.
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Long-Lasting Anti-FoulingThe hydrophilic surface suppresses particle adhesion, helping maintain module light transmission and reduce the risk of declining power-generation efficiency.
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Strong Weather ResistanceUV-, acid- and alkali-resistant performance withstands extreme temperature changes from -40°C to 80°C for stable operation in harsh environments.
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High Light TransmittanceImproves PV glass light transmission and light absorption, indirectly increasing power-generation efficiency by approximately 3%–5%.
Product Parameters
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Product Model YCB01008R Solid Content 13±1% pH Value 6.0–8.0 Curing Conditions Surface-dry in 20 minutes at room temperature; fully cured in 24 hours Light Transmittance Loss ≤0.3% Water Contact Angle <10° (superhydrophilic) Sealed Storage Period 6 months in original sealed packaging in a cool, dark place
Biomimetic Lotus-Leaf Self-Cleaning Effect
A nanoscale titanium-dioxide hydrophilic coating forms a dense inorganic protective layer on PV glass. As water spreads across the surface, the continuous film lifts dust, bird droppings and other contaminants from the glass and carries them away with rainwater, delivering a rain-assisted self-cleaning effect and substantially reducing manual cleaning frequency.
Antistatic Resistance to Dust Adhesion
By eliminating electrostatic buildup on the glass, the coating disrupts the mechanism that attracts dust particles. Its hydrophilic groups neutralize the electrostatic field at the panel surface, making it difficult for dust to remain attached through static attraction. Even during extended dry periods without rain, dust accumulation is reduced by more than 60% compared with ordinary glass, keeping modules under a lower dust load.
Light-Transmittance Gain without Efficiency Loss
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Alongside self-cleaning performance, a gradient refractive-index design provides a single-side light-transmittance gain of 1.5%–2.5%. The coating therefore does not block sunlight while reducing dust; instead, it increases the amount of light passing through PV glass and directly supports higher photoelectric conversion efficiency, delivering both cleaning and performance benefits.
Long-Lasting Wear-Resistant Inorganic Shield
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The coating is based on inorganic oxides and reaches a hardness above 5H after high-temperature curing or room-temperature crosslinking, with strong adhesion to the glass substrate. Its abrasion and weather resistance sustain dust-control performance for 3–5 years under harsh outdoor conditions while resisting windblown-sand erosion and acid-rain corrosion.
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