The breakthrough in ethyl silicone oil technology leads to the upgrade of new materials for high-end manufacturing. 

1. Core synthesis process innovation: Double breakthrough in high molecular weight and high purity
Since 2026, the domestic synthesis technology of ethyl silicone oil has achieved a key breakthrough. It has achieved a qualitative leap in three core indicators: high molecular weight, narrow molecular weight distribution, and low volatile content purification. The application of the new catalytic system has enabled the precise control error of vinyl content to be reduced to within 0.5%, solving the batch stability problem that has long constrained high-end applications. At the same time, the large-scale implementation of the coupling process of molecular distillation and adsorption purification has made the product volatile content lower than 0.1%, meeting the standards for electronic-grade applications.
Compared with the traditional process, the thermal resistance upper limit of the new generation of ethyl silicone oil has been increased to 220℃, and its low-temperature fluidity remains excellent even at -70℃, fully meeting the requirements of extreme working conditions such as aerospace and precision instruments. The technological upgrade directly promotes the optimization of the product structure. It is expected that the proportion of mid-to-high-end ethyl silicone oil will rise to 37.4% in the middle of 2026, and the proportion of ultra-high purity type will reach 19.8%, gradually replacing imported products. 

2. Special Lubrication Field: All-round Solutions for High and Low Temperature Conditions
Ethyl silicone oil, with its unique molecular structure, has established an irreplaceable advantage in the field of special lubrication. In high-temperature scenarios such as textile heat setting machines and printing and dyeing equipment, the lubricating film formed by it can remain stable at 200°C continuous operation conditions, with a friction coefficient stable at 0.08-0.12, and the equipment maintenance cycle is extended by more than three times. In ultra-low temperature environments such as polar scientific expeditions and aviation navigation, the -100°C ultra-low gel point characteristic ensures that precision gyroscopes and sensors can operate accurately in extreme cold.
Compared with ordinary methyl silicone oil, the compatibility of ethyl silicone oil with mineral oil and synthetic hydrocarbons has improved by 60%, and it can be directly compounded and mixed with various special lubricating greases. It has been widely used in key components such as aircraft engine bearings, high-speed rail braking systems, and automotive electronic throttle valves, becoming the core guarantee for the "long-life operation" of high-end equipment. 

3. Electronic and Electrical Applications: Dual Performance of Insulation and Heat Dissipation Empowers High-End Manufacturing
The electronic and electrical sector has become the fastest-growing application area for ethyl silicone oil, with a demand growth rate of 18.7% by 2026. Its excellent dielectric properties and thermal stability make it an ideal insulating filler medium for high-voltage transformers, energy storage converters, and IGBT modules. In 5G base stations and data center cooling systems, ethyl silicone oil serves as a heat transfer fluid, with a thermal conductivity efficiency 25% higher than traditional silicone oil, helping equipment operate stably under high-density integration.
In particular, in the precision electronic packaging process, the low surface tension characteristic of ethyl silicone oil can perfectly wet the gap between the chip and the substrate, forming a uniform protective layer, while resisting moisture, salt fog, and vibration erosion. Data shows that electronic devices encapsulated with ethyl silicone oil have a lifespan extended by 40% and a failure rate reduced by more than 50%. 

4. Market Structure Transformation: Domestic Substitution Accelerates, Export Volume and Price Rise Simultaneously
The market size of ethyl silicone oil in China is expected to reach 4.72 billion yuan in 2026, with a year-on-year growth of 11.6%, far exceeding that of the ordinary silicone oil industry. With technological breakthroughs and capacity expansion, the market share of domestic products in the high-end market has increased from 28% in 2021 to 56% in 2026. The export market has also expanded simultaneously. The average export price in 2026 is expected to reach 31,200 yuan per ton, an increase of 9.1% compared to 2025.
ASEAN, the Middle East, and Europe have become the main export regions. High-purity products account for 46.5% of the total export volume. Under the background of global supply chain restructuring, Chinese ethyl silicone oil, with its cost advantage and supply stability, is gradually becoming the mainstream choice in the global high-end market, promoting the organic silicon industry to accelerate its transformation towards higher value-added directions.