With the advancement of aerospace electronic equipment towards higher power density, heat dissipation has become a bottleneck problem that restricts the performance of space equipment. On January 31, 2026, Shenzhen Debon Interface Materials officially applied for a patent for thermal conductive silicone grease for aerospace electronic equipment. Its core component is the well-known ethyl silicone oil - ethyl silicone oil with a viscosity of 50-1000 mPa · s accounts for 3-8 parts, which is synergistically combined with phenyl silicone oil, modified silicone oil, and nanoscale zinc oxide to meet the heat dissipation needs in extreme space environments.


Ethyl silicone oil, also known as polydiethylsiloxane (CAS number 63148-61-8), operates within a temperature range of -60 ° C to 150 ° C, with minimal viscosity changes with temperature. It has low surface tension and a vapor pressure of only 0.532mmHg (25 ° C), making it a leader in low-temperature lubrication and aerospace thermal conductivity. As pointed out in the industry update released by Anhui Aiyota Silicone Oil Co., Ltd. in April 2026, "Ultra low temperature resistant ethyl silicone oil is breaking through extreme environments and empowering high-end upgrades in multiple fields


In fact, the market territory of ethyl silicone oil is rapidly expanding. According to research data from Bezos Consulting, the market size of ethyl hydrogen silicone oil in China has reached 274 million yuan in 2024, with a global market size of 1.092 billion yuan. It is expected to soar to 1.865 billion yuan globally by 2030. From healthcare to aerospace, from personal care to the automotive industry, ethyl silicone oil is penetrating every high-end manufacturing capillary with its unique advantages of "mixing without oil picking and zero corrosion".


It is worth noting that the Hubei region has become a core industrial cluster for ethyl silicone oil. Hubei Jusheng Technology, Hubei Xinkang Pharmaceutical and Chemical, Kandis Chemical and other enterprises have increased their layout, with products covering industrial grade, daily chemical grade and reagent grade, with a minimum order price as low as 20 yuan/kg and a total supply of tens of millions of kilograms. The maturity of the industrial chain is pushing ethyl silicone oil from a "laboratory star" to an "industrial grade necessity".


Industry insiders point out that when ethyl silicone oil is deeply integrated with cutting-edge scenarios such as aerospace heat dissipation and ultra-low temperature lubrication, a segmented track with an annual output value of billions is taking shape. This is not only a story of a barrel of oil, but also a vivid footnote to the rise of Chinese organic silicon materials to the top of the value chain.