Corresponding Functions of Dimethyl Silicone Oil by Viscosity (30,000/50,000/100,000 cSt) - Classified by Core Application Fields
Source:AI+MODIFY Author:QL CHEMICAL Release time:2026-02-09 09:48 Reading times:24
Core rule: The higher the viscosity, the greater the consistency, the denser the film formation, the stronger the lasting performance/mold release capacity, and the poorer the fluidity; 30,000 cSt is of medium-high consistency, balancing fluidity and basic long-acting performance; 50,000 cSt is the golden viscosity in this range, with the optimal comprehensive performance and the widest versatility; 100,000 cSt is of high consistency, focusing on strong mold release and ultra-long-acting film formation/lubrication, suitable for scenarios with high requirements for lasting performance.

I. Rubber and Plastic Processing Industry (core scenario for mold release/modification)

  • 30,000 cSt: Basic mold release with good fluidity, suitable for large-area mold spraying after dilution (such as injection molding of large parts, FRP flat plates); can be used as the basic raw material for rubber and plastic modification to improve the mild slip property/weather resistance of products; suitable for the molding of medium and low precision rubber and plastic products.
  • 50,000 cSt: General strong mold release, balancing fluidity and mold release capacity, applicable for both pure product coating and diluted spraying; suitable for the molding of all types of rubber and plastic products such as precision small parts (e.g., electronic plastic accessories), conventional large parts (e.g., rubber seals) and composite materials (e.g., carbon fiber compression molded parts); the core raw material for rubber and plastic modification, balancing the slip property, toughness and processing fluidity of products.
  • 100,000 cSt: Super strong mold release capacity with high consistency and dense film formation, suitable for precision coating of pure product (such as high-gloss plastic parts, complex special-shaped rubber and plastic compression molded parts); targeted for the molding and mold release of easy-to-stick mold materials (such as phenolic resin, soft silicone rubber); high weather resistance modification of rubber and plastic, improving the surface compactness of products and enhancing scratch/aging resistance.

II. Daily Chemical and Cosmetics Industry (core scenario for oil phase film formation/smoothing)

  • 30,000 cSt: Basic long-acting smoothing with moderate film formation, suitable for ordinary hair care/skin care products (such as affordable hair conditioners, body lotions); improving the basic smoothness of hair and basic moisturization of skin, with better lasting performance than low-viscosity silicone oil, and easy to compound with other oil phase components.
  • 50,000 cSt: Mid-to-high end general film formation/smoothing with dense film formation and non-greasy skin feel, being the core adapted viscosity for daily chemicals; suitable for high-end hair conditioners/hair masks, creams/hand creams and conventional color cosmetics (lipstick/eye shadow); balancing water resistance and spreadability, and can be used as the basic film-forming component of waterproof skin care products/color cosmetics.
  • 100,000 cSt: Ultra-long-acting dense film formation with full water resistance/lasting performance, suitable for high-end waterproof daily chemical products (such as waterproof liquid foundation, outdoor sunscreen, long-acting hair care essential oil); forming a thick hydrophobic film on the hair/skin surface to achieve long-acting moisturization, anti-dryness, water and sweat proof; served as a high makeup holding base material in color cosmetics to improve the adhesion of color cosmetics and prevent makeup removal.

III. Mechanical Lubrication and Protection (scenario for precision/high temperature/long-acting lubrication)

  • 30,000 cSt: Basic long-acting lubrication with good fluidity, suitable for large-area coating of light load precision components (such as printer slide rails, plastic machine door hinges); basic lubrication of plastic gears in medium and low temperature (-50~150℃) environment; short-term rust prevention (1~3 months) of small metal parts.
  • 50,000 cSt: General precision/high temperature lubrication, balancing the lasting lubrication performance and component adaptability, suitable for most precision instruments/high temperature light load components (such as clock micro bearings, oven lead screws, camera gears); special lubrication for plastic/rubber seals, no corrosion to components and long-acting anti-aging; medium-term rust prevention (3~6 months) of small metal parts; can be used as the basic raw material for silicone grease compounding to balance the consistency and lubricity of silicone grease.
  • 100,000 cSt: Ultra-long-acting high temperature lubrication with high consistency and no easy loss, suitable for ultra-long-acting light load lubrication at high temperature (150~200℃) (such as high temperature roaster hinges, continuously working precision gears); ultra-long-acting lubrication of core components of precision instruments (such as watch movements); long-term rust prevention (6~12 months) of small metal parts; compounding high-consistency silicone grease to improve the high temperature resistance and extrusion resistance of silicone grease.

IV. Electronic and Electrical Industry (scenario for insulation/moisture proof/sealing)

  • 30,000 cSt: Basic insulation and moisture proof with good fluidity, suitable for large-area coating of medium and low voltage electronic components (such as outer layer insulation of capacitors/resistors, basic protection of terminals); auxiliary mold release for potting of LED lamps, with good compatibility with epoxy resin and no impact on the basic insulation of potted parts.
  • 50,000 cSt: General insulation, moisture proof and sealing with excellent dielectric strength and dense film formation, suitable for most medium and low voltage electronic and electrical equipment (such as transformer/inductor insulation, switch sealing, moisture proof of precision instrument shells); the core auxiliary mold release agent for potting of LED lamps, balancing mold release capacity and insulation of potted parts; basic anti-fog of electronic instrument lenses, forming a thin film to isolate water vapor.
  • 100,000 cSt: High-strength insulation and sealing with thick film formation and strong moisture resistance, suitable for protection of electronic equipment in humid/harsh environments (such as outdoor junction boxes, industrial controller sealing); insulation of small high-voltage electronic components (such as high-voltage capacitors); long-acting anti-fog/dust proof of precision electronic lenses, forming a dense film layer to block dust and water vapor.

V. Coatings and Inks Industry (scenario for slip/anti-blocking/leveling additive)

  • 30,000 cSt: Basic surface slip with good dispersibility, suitable for ordinary oil-based coatings/inks (such as civil wood paint, ordinary printing ink); improving the basic slip property of paint film/ink layer, slightly enhancing scratch resistance and preventing mild blocking; suitable for low-gloss coating systems without affecting the leveling property of paint film.
  • 50,000 cSt: General slip and anti-blocking, balancing dispersibility and compactness, being the core adapted additive viscosity for coatings/inks; suitable for mid-to-high end industrial paint/furniture paint and gravure/flexographic printing ink; significantly improving the scratch and wear resistance of paint film/ink layer, completely solving the blocking problem in high temperature and high humidity environment; improving the leveling property and gloss of paint film without oil floating risk.
  • 100,000 cSt: Super strong anti-blocking and wear resistance with dense film formation, suitable for high-requirement industrial coatings/inks (such as automotive paint, high-end furniture high-gloss paint, wear-resistant printing ink); improving the hardness and scratch resistance of paint film/ink layer, suitable for outdoor weather-resistant coatings; special anti-blocking agent for powder coatings to prevent adhesion after powder coating molding.

VI. Textile and Leather Industry (scenario for soft/slip/waterproof finishing)

  • 30,000 cSt: Basic soft and slip with good fluidity, suitable for large-area finishing of ordinary chemical fiber fabrics (such as polyester cloth); improving the basic softness and antistatic property of fabrics, reducing mild adhesion of fabrics; can be emulsified to make water-based finishing agent, suitable for civil textile production lines.
  • 50,000 cSt: General soft, slip and waterproof, balancing hand feel and finishing effect, suitable for the finishing of all types of chemical fiber/artificial leather/PU leather; improving the slip and antistatic property of fabrics/leather and the hand feel of leather; compounded with water repellent to improve the basic water resistance of textile fabrics; emulsified to adapt to environmental protection textile/leather finishing production lines with low addition amount and excellent effect.
  • 100,000 cSt: Ultra-long-acting soft and waterproof with dense film formation, suitable for finishing of high-end textile/leather products (such as waterproof outdoor fabrics, genuine leather sofa leather, high-end garment fabrics); improving the wear/water resistance of leather and forming a long-acting protective film; the core finishing component of outdoor waterproof fabrics to achieve ultra-long-acting water and stain proof.

VII. General Mold Release and Civil Auxiliary Scenarios

Industrial General Mold Release

  • 30,000 cSt: Large-area mold release of concrete/gypsum products (such as gypsum board, precast concrete component), emulsified to make water-based mold release agent, suitable for environmental protection production lines; ordinary molding and mold release of candles/soaps.
  • 50,000 cSt: General mold release of concrete/gypsum/candles/soaps, balancing mold release capacity and the finish of product surface; basic mold release of food machinery (food-grade), suitable for ordinary baking molds.
  • 100,000 cSt: Precision product mold release of concrete/gypsum (such as gypsum crafts, special-shaped concrete components), improving the finish of product surface; high-end baking/candy mold release of food-grade (such as chocolate precision molds), no residue and easy to clean.

Other Auxiliary Functions

  • 30,000 cSt: Compounded raw material of metal/stone basic polishing agent to improve the basic polishing gloss; basic defoamer of high-viscosity system, balancing defoaming and lasting performance.
  • 50,000 cSt: Core raw material of metal/stone general polishing agent to balance polishing gloss and efficiency; long-acting defoamer of high-viscosity coatings/adhesives, no oil floating and thorough defoaming.
  • 100,000 cSt: Raw material of metal/stone high-gloss polishing agent to improve the compactness and gloss of polished surface; long-acting mold maintenance agent, forming a thick oil film after coating to prevent long-term rust and dust adhesion of molds.


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