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In the third quarter of 2026, a landmark industrial progress in the global fluorosilicone material sector was officially announced: a new generation of 1,000-ton production line for high-end fluorosilicone oil in China, covering the full process of perfluoroalkyl modification, continuous polymerization and multi-stage molecular distillation purification, has achieved full-load stable operation. All core product indicators, including temperature resistance range, chemical corrosion resistance and surface energy control accuracy, have reached the international advanced level, completely breaking the decades-long technological monopoly of overseas enterprises in the field of high-purity, low-volatility special fluorosilicone oil. As a high-end functional material integrating organofluorine and organosilicon technologies, fluorosilicone oil, leveraging the low surface energy characteristics of fluorocarbon chains and the flexibility advantage of siloxane chains, has become an irreplaceable core basic material in strategic fields such as aerospace, semiconductor manufacturing and new energy. The implementation of this production capacity not only fills the domestic technological gap, but also elevates the supply chain security level of China's high-end fluorosilicone new material industry to a brand-new height.
Looking back at the development history of China's fluorosilicone oil industry, the evolution of the past 30+ years has always been driven by the forced demand from downstream high-end manufacturing and continuous R&D efforts. As early as the 1990s, China realized small-batch production of general-purpose fluorosilicone oil with medium and low fluorine content. However, restricted by core technical shortcomings such as perfluoroalkyl monomer synthesis, precise temperature control in fluorosilicone copolymerization and deep removal of high-boiling residues, domestic products have long been concentrated in low-to-medium end scenarios such as release agents and ordinary fabric finishing agents. Persistent problems such as uneven distribution of fluorocarbon chains, high content of small molecule volatiles and poor long-term service stability have never been completely solved, making it impossible to meet the strict requirements of aerospace, semiconductors and other fields. For a long period, the import dependence of China's high-end fluorosilicone oil exceeded 85%. Overseas suppliers not only maintained high pricing for a long time, but also frequently restricted supply by imposing export controls and extending delivery cycles, bringing great supply chain risks to the stable production of multiple strategically emerging industries in China.
Since 2023, the explosive growth of downstream emerging industries has directly driven the demand expansion of the fluorosilicone oil market. Industry statistics show that in 2024, the overall market size of fluorosilicone oil in China reached 17.2 billion yuan, with a total output exceeding 127,000 tons, a year-on-year increase of 18.6%. Among them, special fluorosilicone oil with high fluorine content and low volatility contributed more than 70% of the incremental demand. From the perspective of downstream demand structure, 38.2% of China's fluorosilicone oil demand comes from the aerospace and high-end equipment field, 27.5% comes from the semiconductor manufacturing scenario, and the remaining demand is distributed in segmented tracks such as new energy vehicles and special anti-corrosion coatings. With the large-scale delivery of China's large aircraft industry and the massive implementation of third-generation semiconductor production lines, the demand growth rate for high-end fluorosilicone oil has remained above 27% for three consecutive years. Traditional low-to-medium end products have been completely unable to match the performance requirements of downstream, making the full-process technological upgrading at the industrial end extremely urgent.
The core technological breakthroughs of this new generation of production line cover the full chain links from raw material pretreatment to finished product post-treatment. On the raw material side, the new continuous electrolytic fluorination purification process increases the purity of perfluoroalkylethylmethyldichlorosilane monomer to 99.92%, controlling the metal ion impurities in the raw material below 30ppb, avoiding the fluorocarbon chain breakage caused by impurities from the source. In the polymerization reaction stage, the independently developed low-temperature gradient copolymerization technology realizes the uniform distribution of fluorine side chains on the siloxane main chain, making the fluorine content control accuracy of products 45% higher than that of the traditional batch process, and the consistency of molecular structure has achieved a qualitative leap. In the post-treatment link, the application of the seven-stage high-vacuum molecular distillation devolatilization system controls the small molecule volatile content of the product below 0.2%, far lower than the industry average of 3% in traditional processes, completely solving the long-standing pain point of high-end downstream equipment that silicone oil is prone to precipitate small molecules and performance attenuates rapidly under high-temperature working conditions. At the same time, the new environmentally friendly anionic ring-opening catalytic system replaces the traditional acid catalyst, reducing the waste acid discharge in the production process by 94% and the energy consumption per unit product by 42%. While greatly improving product quality, it also achieves the industrial upgrading goal of green and low-carbon production.
The most direct value brought by technological upgrading is the performance breakthrough in core downstream application scenarios. In the aerospace field, the aviation hydraulic system sealing grease prepared with the new generation of fluorosilicone oil maintains stable lubrication and sealing performance in the ultra-wide temperature range of -65℃ to 230℃. The swelling resistance to aviation fuel and phosphate ester hydraulic oil is controlled within 0.5%, fully meeting the long-range and long-life service requirements of large aircraft. Previously, the core raw material of this high-end sealing grease was completely dependent on imports. The implementation of domestic products directly reduces the comprehensive production cost of China's large aircraft hydraulic system by 21%, further consolidating the independent supporting capability of China's aviation industry.
In the field of semiconductor manufacturing, low-volatility fluorosilicone oil has become a special lubrication and sealing material for the core components of etchers in the wafer manufacturing process. The prepared sealing parts have a continuous service life more than 6 times longer than traditional silicon-based materials in the strong corrosive fluorine-based plasma environment, and will not precipitate particles to pollute wafers during long-term operation. It has now been batch applied in etching equipment with 14nm and below process nodes, completely solving the long-standing "stuck neck" problem of high-end fluorosilicone sealing materials that plagues China's semiconductor manufacturing industry. In the field of new energy vehicles, the fluorine-modified polyether additive synthesized from high-fluorine content fluorosilicone oil reduces the surface tension of power battery electrolyte to below 17mN/m, increases the wettability of the electrolyte on the pole piece by 2.8 times, and extends the cycle life of the power battery by 15%. It has now been widely promoted and applied in many leading power battery enterprises in China.
With the gradual release of domestic high-end production capacity, the market supply structure of fluorosilicone oil is undergoing fundamental changes. In the past two years, China's fluorosilicone oil industry has gradually bid farewell to the extensive low-end capacity expansion model. A large number of small and medium-sized production capacities with substandard environmental protection and backward technical levels have exited in an orderly manner. The industry concentration has continued to increase, and resources are accelerating to gather in leading enterprises with full-chain R&D strength. In 2025, the market size of fluorosilicone oil in China is expected to exceed 21 billion yuan, among which the market share of special high-end fluorosilicone oil will further increase, and the localization rate of high-end products is expected to exceed 55% by the end of the year. At the global market level, the global fluorosilicone oil market size is about 870 million US dollars in 2025, and it is expected to grow to 1.48 billion US dollars at a compound annual growth rate of 9.2% from 2025 to 2031. As the world's largest emerging market for fluorosilicone oil, China is gradually shifting from product import to independent supply and technology output, occupying a more core position in the global fluorosilicone new material industrial chain.
Industry experts point out that the full-process technological breakthrough and capacity implementation of high-end fluorosilicone oil is a landmark event for China's fluorosilicone new material industry from "following" to "running alongside" and then to "partially leading". In the past, China's fluorosilicone industry long focused on the scale expansion of general-purpose basic products, and was restricted by others in the high-end special intermediate field for a long time. The full-process independent control of technology this time not only directly reduces the production cost of dozens of downstream fluorosilicone new materials, but also opens up the full industrial chain technical barriers from basic fluorine monomers and silicon monomers to high-end end products, opening up a new space for subsequent innovation of the entire industry. In the future, with the continuous iteration of downstream emerging industries, high-end fluorosilicone oil will also achieve application breakthroughs in more cutting-edge scenarios such as deep space exploration equipment sealing and third-generation semiconductor packaging materials, providing solid material support for the high-quality development of multiple strategically emerging industries in China.
