There are significant differences between industrial grade and cosmetic grade dimethyl silicone oil, which are mainly reflected in purity, impurity content, performance characteristics and application areas.

In terms of purity, the purity requirements for cosmetic-grade dimethicone are extremely high, usually above 99.5%. For example, some high-end cosmetic brands use dimethicone with a purity of up to 99.9% to ensure safety and effectiveness on the skin. The purity of industrial-grade dimethyl silicone oil is relatively low, generally between 95% and 99%, because industrial application scenarios are relatively less sensitive to purity and focus more on cost control and the feasibility of large-scale production.

Impurity content is another important difference between the two. Cosmetic-grade dimethicone has extremely strict restrictions on impurities, and the content of heavy metals such as lead, mercury, arsenic, etc. must be controlled at extremely low levels, usually one part per million or even lower. This is because once these impurities come into contact with the skin, they may cause adverse reactions such as allergies and inflammation, seriously affecting the health of consumers. Although industrial-grade dimethyl silicone oil also has certain requirements for impurities, the standards are relatively loose and allow the presence of a certain amount of trace metal impurities as long as it does not affect its basic performance in industrial production. For example, in the dimethyl silicone oil used in the field of industrial lubrication, a small amount of impurities will not significantly interfere with the lubrication effect of mechanical equipment.

In terms of performance characteristics, cosmetic-grade dimethicone focuses more on compatibility with the skin and touch. It has excellent spreadability and silky feel, and can form a thin, breathable protective film on the skin surface to prevent moisture loss from the skin without clogging pores, keeping the skin soft and smooth. For example, adding cosmetic-grade dimethicone to lotions, creams and other skin care products can enhance the product experience and make the skin feel moisturized without being greasy. Industrial-grade dimethyl silicone oil emphasizes its physical and chemical properties, such as high temperature resistance, low temperature resistance, and high lubricity. In industrial production, such as the application of mold release agent in plastic processing, industrial grade dimethyl silicone oil can effectively demould under high temperature environment, ensure the surface quality and production efficiency of plastic products, and its lubricating properties help reduce the friction between mechanical parts. Reduce friction and wear, and improve the service life and operation stability of equipment.

From the perspective of application, cosmetic grade dimethyl silicone oil is mainly used in various cosmetics and personal care products, such as skin care products, makeup, shampoo, conditioner, etc., to improve the quality and use experience of the products and meet the needs of consumers. The pursuit of beauty and the need for skin care. Industrial-grade dimethyl silicone oil is widely used in industrial manufacturing fields, such as mechanical lubrication, electronic and electrical insulation, defoaming agent in chemical production, rubber and plastic processing, etc., providing functional support for industrial production processes and improving production efficiency and product quality. . For example, in the electronics industry, industrial-grade dimethyl silicone oil is used as an insulating medium for electronic components, which can effectively prevent electrical short circuits and ensure the normal operation of electronic equipment; in chemical production, it is used as a defoaming agent to quickly eliminate the reaction system. The foam in the air ensures the smooth progress of the production process.