Overview
Polysiloxanes, di-Me (CAS 63148-62-9 ), commercially known as PDMS or Dimethicone, is a silicone polymer used across industries for foam control, lubrication, and surface modification.
In food and pharmaceutical applications, it is also recognized as E900 . Procurement teams source it as a functional additive where controlled surface tension, slip, or defoaming performance is required.
In personal care, PDMS is incorporated into hair conditioners, skin creams, and primers to deliver slip and a non-greasy skin feel without occlusive buildup.
Coatings and release liner manufacturers use it to reduce surface friction and prevent substrate adhesion during processing. Industrial defoaming is a primary application for this versatile polymer.
PDMS controls foam in food processing, fermentation, and wastewater treatment at low addition rates. In lubricants and metalworking fluids, it functions as a boundary lubricant and plasticizer.
PDMS is supplied as a clear liquid across a broad viscosity range, typically from 0.65 cSt to 1,000,000 cSt, with viscosity grade being the primary specification buyers must confirm.
Food-grade and pharmaceutical-grade material is available to FCC , USP , and Ph. Eur. standards under the Dimethicone monograph. Technical grades serve industrial coating and polymer applications.
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Physical Properties
| Melting Point | −59 °C(lit.) |
| Boiling Point | 101 °C(lit.) |
| Density | 0.9 g/cm³ |
| Flash Point | 33 °F |
| Appearance | viscous colourless liquid |
| Color | Clear colorless |
| Odor | Odorless |
| Form | Oily Liquid |
| Water Solubility | PRACTICALLY INSOLUBLE |
| Vapor Pressure | <5 mm Hg ( 25 °C) |
| Refractive Index | n 20/D 1.377(lit.) |
Trade & Regulatory
| HS Code | 39100000 |
| Storage Class | 10 - Combustible liquids |
| WGK (Germany) | 1 |
Other Names
Related Products
Chemical Properties
- CAS Number
- 63148-62-9
- EC Number
- 613-156-5
- Mol. Weight
- -
- HS Code
- 39100000
- Category
- Silicones & Silicates