Anti-corrosion and Drag Reduction Nano Coating Solution for Wind Turbine Blades

Aug 07,2025

1. Industry Pain Points
Wind turbine blades are exposed to complex and harsh outdoor environments for extended periods, facing severe challenges. On one hand, wind, rain, sand, dust, ultraviolet rays, and corrosive substances in the air continuously erode the blade surface, causing wear and corrosion. This not only reduces the structural strength of the blades and shortens their service life but also increases maintenance costs and safety risks. On the other hand, the surface roughness of the blades increases due to environmental factors and long-term use, generating greater resistance under airflow, which leads to reduced wind turbine power generation efficiency. According to relevant data, power generation efficiency loss caused by corrosion and wear on blade surfaces can reach 10%-20%, significantly impacting the economic benefits of wind power projects.
2. Hisense Meike Solution
Hisense Meike has meticulously developed a multifunctional nano-coating that provides comprehensive protection for wind turbine blades. This coating features excellent corrosion resistance, forming a dense and robust protective film on the blade surface that effectively blocks oxygen, moisture, and corrosive media from contacting the blade substrate, greatly slowing corrosion. Additionally, the coating has ultra-smooth properties that significantly reduce frictional resistance between airflow and the blade surface, optimizing aerodynamic performance and improving power generation efficiency. Moreover, the coating has a certain self-cleaning function, making it difficult for dust and dirt to adhere to the blade surface. Even if some attachment occurs, it can be easily washed away by rain or wind, keeping the blade surface clean at all times.
3. Implementation Steps
Blade Inspection and Assessment: Before construction, professional inspection equipment is used to conduct a comprehensive inspection of the wind turbine blades, covering surface roughness, corrosion degree, damage status, etc. Based on the inspection results, a personalized construction plan is formulated. Blades with severe corrosion or damage must be repaired first to ensure a smooth surface and structural integrity.
Surface Pretreatment: Use high-pressure water guns, specialized cleaning agents, and other methods to deeply clean the blade surface, removing dust, oil stains, rust, and old coatings. Then, use sandblasting, grinding, or other methods to roughen the blade surface to enhance coating adhesion. After treatment, clean the blade surface again to ensure a clean and uncontaminated construction environment.
Coating Application: Choose the appropriate application process based on the actual blade condition, such as spraying, brushing, or dipping. When spraying, use professional spray equipment and strictly control spraying pressure, distance, and angle to ensure uniform coating coverage. When brushing or dipping, emphasize operational standardization to ensure consistent coating thickness. During construction, control coating thickness according to product instructions, generally applying multiple layers. After each layer is applied, allow adequate drying and curing time before applying the next layer.
Quality Inspection and Acceptance: After coating application, use various inspection methods to strictly test coating quality, including coating thickness, adhesion, hardness, corrosion resistance, and drag reduction performance. Only when all indicators meet standard requirements can the blade pass acceptance and be put into use. Regularly inspect coated blades to observe coating wear, corrosion, and drag reduction effects, promptly identifying and addressing issues.
4. Expected Effects
Improved Power Generation Efficiency: The coating effectively reduces ice formation on blade surfaces, preventing increased surface roughness and aerodynamic performance degradation caused by icing, thereby reducing power loss. It is expected to improve wind turbine power generation efficiency in low-temperature or high-humidity environments. 5%-15% 。
Reduced Downtime Risk: Ice accumulation can cause blade imbalance or unit vibration. The coating significantly reduces emergency shutdowns caused by icing by inhibiting ice formation, enhancing unit operation stability and availability , lowering operation and maintenance interruption costs.
Extended Blade Lifespan: The freeze-thaw cycle easily causes surface cracking or material fatigue of blades. The coating reduces ice adhesion and physical peeling, lowering blade maintenance frequency and extending blade service life by 3-5 years.

Reduced Maintenance Costs: Reduces the need for de-icing equipment (such as heating systems or mechanical de-icing) and lowers the risks and costs of manual high-altitude de-icing work. Maintenance costs are expected to decrease by 20%-30% .
Enhanced Environmental Adaptability: Suitable for high-latitude, high-altitude, or coastal foggy areas, expanding the deployment range of wind turbines and improving power generation reliability under extreme weather conditions.

Improved Safety: Enhances blade structural stability and reliability, reducing the risk of safety accidents caused by blade damage, ensuring safe and stable operation of wind farms.