Molekula
Poly(dimethylsiloxane)
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Poly(dimethylsiloxane), or PDMS, is a versatile silicone-based polymer used for its flexibility, thermal stability, and water repellency in applications like sealants, lubricants, and biomedical devices. This clear, odorless fluid is non-toxic and chemically inert, making it ideal for laboratory, industrial, and consumer products. Available as CAS 9016-00-6 with the molecular formula (C2H6OSi)n, it requires no special storage—simply keep at ambient conditions. No hazard warnings apply. Molekula supplies Poly(dimethylsiloxane) from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Clear, colourless liquid |
| Refractive Index | 1.4015 ~ 1.4025 |
| Flash Point | ≥300℃ |
| Viscosity | @25℃ 350 ±5 |
| Specific Gravity | 0.955 ~ 0.965 g/cm3 |
| Acid number | ≤10 μg/g |
| Volatile Matter | ≤2.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 321 °C |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 90037181 |
| CAS Number | 9016-00-6 |
| Molecular Formula | (C2H6OSi)n |
| Molecular Weight | N/A |
| SMILES | C[Si](=O)C |
| REACH Code | Y113 |
| HTS Code | 39100000 |
| Tariff Code | 3910000090 |
Safety & GHS
Precautionary statements
- P264 Wash thoroughly after handling
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is Poly(dimethylsiloxane) commonly used for?
Poly(dimethylsiloxane) (PDMS) is widely used in silicone-based products like sealants, adhesives, lubricants, cosmetics, and as a mold release agent in manufacturing.
What is the chemical formula and molecular weight of Poly(dimethylsiloxane)?
The chemical formula is **(C2H6OSi)n**, but the molecular weight (MW) varies depending on the polymer chain length.
How should Poly(dimethylsiloxane) be stored?
Store at **ambient temperature** in a tightly sealed container, away from direct sunlight and moisture to prevent degradation.
What grades or forms of Poly(dimethylsiloxane) does Molekula supply?
We supply **fluid-grade PDMS** in various viscosities (e.g., 10 cSt to 100,000 cSt) and can provide technical data on specific grades upon request.
Can Molekula supply Poly(dimethylsiloxane) in bulk quantities?
Yes, we offer **bulk packaging options** (drums, IBCs, or custom solutions) for large-volume orders—please contact us for pricing and lead times.
What documentation comes with an order of Poly(dimethylsiloxane)?
Each order includes a **Certificate of Analysis (CoA)**, Material Safety Data Sheet (MSDS), and batch-specific documentation for traceability.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.