Polydimethylsiloxane (PDMS)
CAS: 63148-62-9Dimethyl silicone oil (PDMS) is a versatile, inert silicone fluid with excellent thermal stability, low surface tension, and water repellency. Available in multiple viscosities from 100cst to 10000cst, it serves diverse applications across industrial, cosmetic, and medical industries. Our PDMS meets FDA and REACH standards for safe use in sensitive applications.
| Chemical Name | Polydimethylsiloxane (PDMS) |
|---|---|
| CAS Number | 63148-62-9 |
| Molecular Formula | (C₂H₆OSi)ₙ |
| Appearance | Colorless transparent viscous liquid |
| Purity | ≥99% |
| Density (25°C) | 0.930-0.975 g/cm³ (varies by viscosity) |
| Refractive Index (25°C) | 1.400-1.405 |
| Flash Point | >200°C |
| Thermal Stability | -50°C to 200°C (continuous use) |
| Certifications | REACH, FDA (for cosmetic/food grade) |
| Packing | 200kg drums, 1000kg IBC tanks, or as requested |
Low viscosity
Spray applications
Thin film coatings
Standard viscosity
General purpose
Most popular
Medium viscosity
Industrial lubricants
Heat transfer
High viscosity
Damping fluids
Shock absorbers
Very high viscosity
Heavy lubrication
Specialty applications
Used as heat transfer fluid in heat exchangers, circulating systems and temperature control equipment for stable thermal performance.
Provides damping and cushioning in shock absorbers, hydraulic systems and precision instruments.
Base for skin creams, hair conditioners and makeup, delivering a silky feel and water resistance.
Insulating and cooling medium for transformers, capacitors and high-voltage cable systems.
Matched refractive index for LED lens casting, optical coupling and prism bonding.
Lubricates plastic and rubber components, bearings, gears and seals without swelling or corrosion.
High-temperature lubrication for bearings, gears, and machinery operating in extreme conditions.
Skin moisturizers, hair conditioners, and makeup bases. Provides silky feel and water resistance.
Medical device lubrication, pharmaceutical processing, and implantable device coatings.
Food-grade anti-foam agents, release agents for baking and confectionery.
Transformer oil, capacitor impregnation, and high-voltage cable insulation.
Textile waterproofing, building material protection, and automotive care products.
Other grades customers also source from us.