On December 16, 2025, the China Organic Silicon Industry Association released its latest market report showing that the market size of ethyl silicone oil continues to expand, and it is expected that the global demand for the whole year will exceed 4 billion US dollars, with China accounting for over 35%. This growth is mainly due to the surge in demand for high-performance lubricants, seals, and thermal management materials in the industrial sector, especially the rapid development of new energy vehicles, high-end equipment manufacturing, and electronic and electrical industries.


Industrial applications drive market expansion
Ethyl silicone oil has become an indispensable key material in the industrial field due to its excellent chemical stability, high temperature resistance, and electrical insulation properties. In the field of new energy vehicles, ethyl silicone oil is widely used in battery module heat dissipation, motor insulation, and sealing. Its low volatility and high stability effectively enhance the safety and service life of the equipment. For example, a leading battery company uses modified ethyl silicone oil as a thermal conductive medium, which improves the temperature uniformity of the battery pack by 20% and increases the range by 5%. In addition, in the fields of aerospace and precision manufacturing, ethyl silicone oil, as a high-end lubricant, can withstand extreme temperatures ranging from -60 ℃ to 300 ℃, meeting the requirements of complex working conditions.


Technological upgrades drive product iteration
Faced with diversified market demands, domestic enterprises are accelerating technological breakthroughs and launching multiple customized ethyl silicone oil products. For example, Yunnan Nengtou Silicon Material Technology Development Co., Ltd. has successfully mass-produced low ring vinyl silicone oil through catalytic process optimization. Its volatility is reduced by 60% compared to traditional products, and it has been applied in the fields of 5G communication base station heat dissipation modules and semiconductor packaging. Anhui Aiyota Silicone Oil Co., Ltd. has launched single ended hydroxyethyl silicone oil, which enhances material flexibility through molecular structure design and achieves import substitution in the textile printing and dyeing industry. Its customers include multiple international brands.


Environmental regulations force industry transformation
With the tightening of environmental regulations such as REACH and RoHS in the European Union, the ethyl silicone oil industry is facing pressure for green transformation. Enterprises are increasing their investment in research and development, developing low VOC (volatile organic compounds) and bio based products. For example, Xinyuan Chemical (Shandong) Co., Ltd. has developed ultra-low temperature resistant ethyl silicone oil through fluorosilicone modification technology, which can maintain fluidity in an environment of -100 ℃ while meeting food grade contact standards. It has been applied in polar scientific research equipment and medical cryogenic devices.


Market outlook: Mainstream high-end and differentiation
Industry analysts point out that there will be two major trends in the future market for ethyl silicone oil: one is high-end. With the increasing demand for material performance in downstream industries, the demand for high-purity and functional products will continue to grow; The second is differentiation. Enterprises need to develop specialized silicone oils for segmented fields through technological innovation, such as UV resistant ethyl silicone oil for photovoltaic films and hydrophilic silicone oil for lithium battery separators, in order to build competitive advantages. It is expected that by 2030, the global market size of ethyl silicone oil is expected to exceed 6 billion US dollars, and China will occupy more than 45% of the global market share.