(August 11, 2026) New progress has emerged in the domestic specialty silicone materials industry. The continuous production process for electronic-grade epoxy silicone oil has completed full-load operation verification, and high-purity series products have achieved stable mass production. This further breaks the long-standing reliance on imports for high-end grades, providing domestic raw material support for downstream industries such as semiconductor packaging, new energy, composite materials, and high-end coatings.

Epoxy silicone oil is a reactive-modified silicone whose molecular segment combines the temperature resistance, flexibility, and low surface energy characteristics of siloxanes, as well as the chemical reactivity of epoxy groups. It can chemically bond with various resins such as epoxy resin and polyurethane, serving multiple functions including toughening, viscosity, leveling, and crack resistance. It is an indispensable functional additive and synthetic intermediate in high-end manufacturing.

According to industry data, downstream applications of epoxy silicone oil are highly concentrated, with electronic packaging materials accounting for the largest proportion, followed by wind power composite material demolding, textile finishing, and industrial coating adhesives. Traditional ordinary silicone oils can only be physically blended, which easily leads to migration and precipitation; Epoxy silicone oil, relying on active groups for cross-linking curing, can fundamentally improve pain points within the resin system such as high stress, high brittleness, and insufficient adhesion, greatly enhancing the finished product's weather resistance and resistance to thermal shock.

The mass-produced electronic-grade epoxy silicone oil focuses on strict control of metal impurities, volatile matter, and epoxy value fluctuations. The epoxy group distribution is uniform, batch stability is significantly improved, and it is suitable for impurity-sensitive scenarios such as semiconductor molding plastics, power battery encapsulant adhesives, and highly reliable adhesives. Compared with imported similar products, benchmarking key indicators such as temperature resistance, compatibility, and precipitation resistance can effectively reduce supply chain risks and procurement costs for downstream enterprises.

In the textile sector, epoxy silicone oil can replace some amino silicone oils, solving longstanding issues such as fabric yellowing, poor breathability, and sticky rolls, giving fabrics a soft and smooth feel. Demand continues to rise in the high-end synthetic fiber fabric and sewing thread finishing market. In the coatings and composite materials industry, adding epoxy silicone oil significantly improves the coating's leveling, crack resistance, and salt spray resistance. It can also be used as a tackifier to enhance the bonding ability between silicone rubber and metal or glass substrates.

Market institutions analyze that in 2026, the domestic epoxy silicone oil industry is expected to maintain an overall growth rate of about 8%. Competition for low-end general products will intensify, but there will still be supply gaps for high-purity electronic-grade and specialty aliphatic cyclic epoxy silicone oils, with prominent premium power. With the continuous expansion of semiconductor, new energy, and high-end textile industries, downstream customers no longer focus solely on unit price; their demands for product batch consistency, customized development, and technical support services are increasing. Domestic companies are gradually shifting from simply selling raw materials to a "material formulation solution" model.

Industry insiders say that the next phase of R&D will focus on green solvent-free synthesis, bio-based epoxy silicone oil, and the development of special grades of multifunctional groups, continuously narrowing the technological gap with top overseas products and promoting more domestic specialty silicone products to enter high-end industrial and supply chains.