Polydimethylsiloxane (PDMS)
Product Identification
- Chemical Name
- Polydimethylsiloxane
- Common Name
- PDMS
- CAS No.
- 63148-62-9
- Chemical Formula
- (C2H6OSi)n
- Grade
- Industrial Grade
Chemical Structure
Specifications
| Product Code | Viscosity (cSt at 25 °C) | Flash Point (°C) | Specific Gravity at 25 °C | Refractive Index at 25 °C |
|---|---|---|---|---|
| S201-100 | 90 - 110 | 280 ± 20 | 0.96 - 0.97 | 1.400 - 1.403 |
| S201-350 | 300 - 400 | 280 ± 20 | 0.96 - 0.97 | 1.400 - 1.403 |
| S201-500 | 450 - 550 | 280 ± 20 | 0.96 - 0.97 | 1.400 - 1.403 |
| S201-1000 | 900 - 1100 | 280 ± 20 | 0.96 - 0.97 | 1.400 - 1.403 |
About PDMS
Polydimethylsiloxane (PDMS) is a clear, colourless, odourless silicone fluid. It is non-toxic, non-corrosive, and remains fluid across a wide temperature range. Standard grades are 100, 350, 500 and 1000 cSt, with custom viscosities to order. Every batch is tested for viscosity, flash point, specific gravity and refractive index.
Key Properties
- Excellent thermal stability
- Wide operating temperature range
- Low surface tension
- High spreadability
- Good lubricity
- Excellent water repellency
- Chemically inert and non-reactive
- High oxidation resistance
- Good dielectric properties
- Low volatility
- Non-corrosive to most materials
- Consistent viscosity-temperature behaviour
- Long service life and processing stability
Typical Industrial Uses
- Textile processing and finishing
- Mould release and surface treatment applications
- Industrial lubrication and damping systems
- Rubber and plastic processing
- Antifoam and defoamer formulations
- Surface polishes and protective coatings
- Electrical insulation fluids
- Heat transfer and hydraulic damping applications
- Base fluid for silicone emulsions and speciality industrial formulations
Storage & Handling Instructions
Storage
Store in a dry & ventilated place under normal temperature.
Packing
Available in 200 kg & 50 kg HDPE barrels.
Precaution
Avoid storage with acid & alkali substances.