Applications of Ultra-High Viscosity Dimethyl Silicone Oil (SF-200-3)
Ultra-high viscosity dimethyl silicone oil generally refers to polydimethylsiloxane with a viscosity ranging from 10,000 mm²/s to 1 million mm²/s. It possesses high temperature resistance, weather resistance, low volatility, high lubricity, high insulation, strong hydrophobicity, and excellent viscoelasticity. Its film-forming properties, sealing properties, and lubrication durability are far superior to ordinary viscosity silicone oils. It is widely used in rubber and plastics, lubrication, electrical, daily chemical, coating, machinery, and sealing damping industries.
In rubber and plastics processing and modification, ultra-high viscosity dimethyl silicone oil can serve as a highly efficient mold release agent, internal lubricant, and softener for rubber, silicone, plastics, and polyurethane. It improves demolding efficiency, prevents products from sticking to the mold and scratching, improves processing fluidity, enhances surface smoothness and softness, and also provides toughening, anti-yellowing, and anti-aging effects, thereby extending the service life of products.
In the field of lubrication and protection, it is suitable for long-term lubrication of precision machinery, bearings, gears, guide rails, and metal, plastic, and rubber friction pairs under high and low temperature conditions. It can form a stable lubricating film, reduce friction loss, and is suitable for extreme environments where ordinary lubricating oils are insufficient. It can also be used as a surface protectant for metals, stone, wood, and leather, forming a hydrophobic and dustproof film, providing rust prevention, fouling prevention, and weather resistance.
In the field of electrical insulation, due to its excellent electrical insulation properties, high voltage resistance, and low volatility, it can be used as an insulating filler, moisture-proof sealant, and heat dissipation medium for high-voltage electrical and electronic components, cables, transformers, and instrument transformers. It fills gaps, isolates moisture, improves insulation level and heat dissipation effect, ensures stable operation of equipment in humid and high/low temperature environments, and reduces the risk of breakdown and leakage.
In the daily chemical and personal care industries, it is used in high-end skincare, haircare, and makeup products as a film-forming agent, emollient, thickener, and skin feel modifier. It imparts a smooth and delicate feel to products, forming a thin, breathable protective film, enhancing moisturizing, waterproof, and sweat-resistant properties. Simultaneously, it stabilizes the system and improves the consistency and formability of creams. It is suitable for products such as face creams, hair waxes, hair oils, and base makeup.
In the coatings and inks industry, it acts as a leveling agent, defoamer, slip agent, and weather-resistant additive. It improves coating leveling, eliminates defects such as pinholes and fisheyes, enhances smoothness and gloss, reduces the surface friction coefficient, and strengthens scratch resistance, stain resistance, and aging resistance. It is suitable for high-temperature coatings, industrial paints, wood coatings, and printing inks, while also improving the hydrophobicity and moisture resistance of coatings.
In the field of sealing and damping, its high viscosity and viscoelasticity are utilized as sealing fillers for equipment, pipelines, and valves, as well as shock-absorbing and damping media for precision instruments, home appliances, and automotive parts. It provides sealing and leak prevention, shock absorption, and noise reduction, maintaining stable sealing and damping effects even in high and low temperature environments.
In the textile and building materials industry, it can be used for fabric softening and waterproofing, improving fabric smoothness, softness, and water resistance. It can also be used to modify waterproofing materials and sealants, improving material flexibility, water resistance, and workability to meet the long-term waterproofing and sealing requirements of buildings.
