Hydroxyl Silicone Oil Market Steadily Expands, High-End Upgrade Drives High-Quality Industrial Development

Recently, industry monitoring data and relevant reports show that China's hydroxyl silicone oil industry has achieved steady growth driven by downstream demand, technological upgrading and policy guidance. The market scale continues to expand, the product structure is accelerating towards high-end and functionalization, and the industry has gradually entered a new stage of high-quality development. As of April 14, 2026, the mainstream quotation of domestic ordinary industrial-grade hydroxyl silicone oil (hydroxyl value ≥30 mg KOH/g, viscosity 500 mPa·s) is stable at 22,300 yuan/ton, the quotation of electronic-grade products reaches 35,800 yuan/ton, and the medical-grade products exceed 41,200 yuan/ton, showing a significant premium advantage. The core driving force for market growth comes from the simultaneous release of demand in multiple fields and product structure upgrading. The construction sealant field is still the largest application segment of hydroxyl silicone oil, with a consumption ratio of 36.8% in 2025. With the accelerated advancement of urban renewal and urban village renovation projects, the demand for engineering adhesives has been steadily released, driving the continuous growth of demand for low and medium viscosity hydroxyl silicone oil. At the same time, emerging application scenarios such as electronic packaging and new energy vehicle battery adhesives have developed rapidly, with their combined proportion jumping to 18.6% in 2025. Among them, the demand for high-purity hydroxyl silicone oil in fields such as 5G base stations and power transformers has surged. Its volume resistivity can reach more than 10¹⁴Ω·cm, and the temperature resistance range covers -50℃ to 200℃, which can effectively solve the problem of performance attenuation of traditional insulating materials. In terms of industrial pattern, China has formed a competitive pattern dominated by leading enterprises such as Hesheng Silicon Industry and Xinan Chemical, supplemented by regional enterprises. East China concentrates about 58% of the national production capacity and consumption, and Zhejiang, Jiangsu and Shandong provinces together contribute 49.3% of the national total output. With the continuous breakthrough of domestic technology, the import dependence on high-end products has continued to decline. In 2025, the output growth rates of domestic high-viscosity and ultra-high-purity hydroxyl silicone oil reached 13.7% and 16.2% respectively, far exceeding the industry average. Some products have passed international certifications such as EU REACH and RoHS, with an export volume of 53,000 tons, of which 81.6% have passed the EU SVHC (Substances of Very High Concern) screening. On the cost side, the prices of core raw materials for hydroxyl silicone oil, such as dimethyldichlorosilane and octamethylcyclotetrasiloxane (D4), remain high, coupled with the tight supply of auxiliary raw materials such as methyl chloride, providing solid support for product prices. Industry insiders said that with the continuous release of demand in downstream high-end fields and the pressure from green manufacturing policies to force enterprises to upgrade, the hydroxyl silicone oil market will continue to expand steadily. Enterprises with high-end product production capacity and supply chain advantages will occupy a dominant position in the market, promoting the entire industrial chain to transform towards greenization and high-endization.