Since 2026, the patent for ethyl silicone oil thermal conductive silicone grease for aerospace electronic equipment, applied for by a Shenzhen interface material enterprise, has completed the construction of a pilot line and entered the stage of small-scale production. This product uses ethyl silicone oil with a specific viscosity range as the basic component, compounded with modified zinc oxide thermal conductive filler, which can maintain stable thermal conductivity and insulation performance in extreme temperature difference environments in space, solving the industry pain point of traditional heat dissipation materials being prone to failure in a wide temperature range.


As the core application category of polydimethylsiloxane, ethyl silicone oil has been widely used in various fields such as electronic insulation, pharmaceutical intermediates, cosmetic raw materials, etc. due to its low surface tension, low volatility, and excellent electrical insulation properties. The industrialization of aerospace grade ethyl silicone oil products marks the rapid upgrading of the domestic ethyl silicone oil industry from an industrial grade general category to a high-end functional direction. The current domestic market for ethyl silicone oil has formed a clear hierarchical competition pattern, with the top ten major production enterprises having a total market share of 68.3%. In addition to traditional automotive, electronics, and textile fields, downstream applications in emerging fields such as personal care, construction industry, and aerospace are expanding at an average annual growth rate of over 15%. It is expected that the overall market size of ethyl silicone oil in China will reach 18-20 billion yuan by 2026, with a compound annual growth rate of 8% -12%.