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In August 2026, a major technological innovation in the application field of fluorosilicone oil achieved an industry-wide breakthrough: the fluorosilicone oil modified coating process based on the new fluorosilicone interface bonding technology has completed the full-process industrial verification. On the premise of ensuring that the coating adhesion meets the standards, it has achieved the dual improvement of the hydrophobic and oleophobic properties and strong corrosion resistance of the metal substrate surface, completely breaking the long-standing industry pain point that "high corrosion resistance and high adhesion cannot be balanced" for traditional anti-corrosion coatings, opening up a new direction for the long-term anti-corrosion upgrading of high-end equipment in marine engineering, rail transit and other fields. As the core functional component in the field of high-end interface modification, fluorosilicone oil has always been the preferred material in the field of high-end interface modification due to its unique low surface energy characteristics. This process innovation will not only directly reconstruct the technical system of the entire high-end equipment anti-corrosion industry, but also greatly extend the service life of downstream industries.
For a long time, the application upgrading of fluorosilicone oil in the field of interface modification has always been the core R&D direction of the global fluorosilicone industry. Although the traditional physical blending modification scheme can introduce fluorosilicone oil into the coating system, due to the migration characteristics of fluorocarbon chains, the fluorine-rich components are easy to migrate and enrich to the surface during the coating curing process, resulting in a sharp decline in the interface adhesion between the coating and the metal substrate, and eventually leading to problems such as coating peeling and anti-corrosion failure. In the past decades, scientific research teams in the global industry have been constantly exploring technical paths to solve this contradiction, but it has always been difficult to find a perfect balance between low surface energy characteristics and interface adhesion. Related technologies have long stayed in the laboratory stage and cannot achieve large-scale industrial application.
The new fluorosilicone interface bonding technology realized in this industrial landing adopts reactive fluorosilicone oil with active hydroxyl groups as the core modified component. During the coating curing process, the active end groups of fluorosilicone oil can form chemical bonds with both the coating resin system and the hydroxyl groups on the surface of the metal substrate, which not only ensures the directional arrangement of fluorocarbon chains on the coating surface, but also achieves high-strength interface bonding between the coating and the substrate. The new modified system produces coatings with a water contact angle of 118° and an oil contact angle of 72°. At the same time, the cross-cut adhesion of the coating reaches level 0, and the neutral salt spray resistance test duration exceeds 12,000 hours, which is more than 3 times longer than the anti-corrosion life of traditional fluorocarbon coatings, fully meeting the long-term anti-corrosion requirements of high-end equipment in marine environments.
The changes brought by this technological breakthrough to the downstream high-end equipment field are all-round. In the field of marine engineering equipment, the offshore wind power tower treated with the new fluorosilicone oil modified coating has its designed service life extended from the traditional 15 years to 40 years in the marine environment with high salt spray and high humidity, and the operation and maintenance cost is reduced by 60%. At the same time, the low surface energy characteristics of the coating surface greatly reduce the adhesion of marine organisms, which can reduce the cleaning and maintenance cost of wind power towers by more than 70% every year. Actual measurement data from downstream enterprises shows that the anti-corrosion coating for marine platform steel prepared by the new process has not shown any rust or peeling phenomenon after 5 years of continuous service in the real sea hanging board test in the South China Sea, and the comprehensive use cost is 45% lower than that of the traditional anti-corrosion scheme, greatly improving the market competitiveness.
In the field of rail transit, the fluorosilicone oil modified coating for pantograph slide plates exhibits excellent arc erosion resistance and friction and wear resistance during the long-term operation of high-speed trains. The service life of the slide plate is increased from the traditional 60,000 km to 250,000 km. At the same time, the low surface energy characteristics of the coating greatly reduce the friction coefficient between the slide plate and the catenary, reducing the power consumption during train operation by 3%, which can save a large amount of operating energy consumption for the national rail transit system every year. Previously, this type of high-performance modified coating was almost completely dependent on imports. The implementation of the new process directly promotes the full localization of such products, and has now been batch applied in the upgrading and transformation of core components of many high-speed railway lines in China.
At the practical implementation level of industrial production, the adaptability advantage of the new process is also outstanding. Traditional fluorosilicone oil modified coatings require complex surface roughening treatment on the substrate, while the new interface bonding process only needs conventional sandblasting and rust removal treatment on the metal substrate before construction. The painting process of the coating is simplified by 30%, the construction period is shortened by 40%, and the VOC emission of the coating is 65% lower than that of traditional fluorocarbon coatings, fully meeting the current green environmental protection requirements in the industrial painting field. More importantly, the coating prepared by the new process also has excellent self-cleaning properties. Rainwater can completely wash away the dust and pollutants on the coating surface, greatly reducing the daily cleaning and maintenance workload of large outdoor equipment.
Industry institutions estimate that with the gradual promotion of the new fluorosilicone oil interface modification process, by 2028, China's entire high-end equipment anti-corrosion industry will achieve an annual reduction of equipment maintenance costs of more than 19 billion yuan, reduce material loss caused by metal corrosion by more than 2.3 million tons, and create direct economic benefits of more than 32 billion yuan. This technology will not only greatly extend the service life of China's high-end equipment, but also break the long-term monopoly of overseas materials in the high-end anti-corrosion field, enabling more extreme working condition scenarios that were previously difficult to achieve long-term anti-corrosion to have low-cost, high-reliability solutions, promoting the operation efficiency of the entire high-end manufacturing industry to enter a new stage.
Industry experts point out that the industrial implementation of the fluorosilicone oil interface modification technology is a milestone technological innovation in the development history of fluorosilicone material applications. It not only solves the long-standing industry pain point that low surface energy and high adhesion cannot be compatible, but also builds a brand-new long-term anti-corrosion technical system, providing a highly valuable practical path for the performance upgrading of the entire high-end equipment manufacturing industry. In the future, with the continuous iterative optimization of technology, this new modified system will further expand its application scenarios, covering more equipment protection fields under extreme working conditions, and promoting the comprehensive performance and international competitiveness of China's high-end equipment to enter a new development stage.
