Dimethicone (Polydimethylsiloxane, PDMS)

Name: Dimethicone (Polydimethylsiloxane, PDMS)
Brand: RawSource

At a Glance

Primary Role

Lubrication · Slip / Release

Functional Roles

Applications & Use Cases

▸ Industrial antifoam: Foam control in aqueous systems, petroleum processing, and laundry detergents.
▸ Lubricant: Slip and lubrication for films, yarn, and fillers.
▸ Cosmetic emollient: Skin-conditioning and emollient ingredient in personal-care products.
▸ Antistatic & antifoaming: Antistatic and antifoaming silicone ingredient in cosmetics.

Safety & Handling

Full SDS available on request

A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.

Request SDS →

HS / Tariff Classification

Harmonized System (HS) Code — 6-digit international heading

3910 . 00

Chapter 39

Plastics and articles thereof

Heading 39.10

Internationally harmonized (WCO HS)

Subheading 3910.00

6-digit international code — national tariff line adds further digits

Chemical Identity

CAS Number

9006-65-9

Full Description

Dimethicone (polydimethylsiloxane, PDMS) is a linear silicone fluid of dimethylsiloxane repeat units. It is used as an antifoam in aqueous systems, petroleum processing, and detergents; as a lubricant for films, yarn, and fillers; and as an emollient, skin-conditioning, antifoaming, and antistatic ingredient in cosmetics.

Frequently Asked Questions

What is pharmaceutical dimethicone used for?

Pharmaceutical-grade dimethicone (polydimethylsiloxane, PDMS) is a linear silicone fluid used as an antifoam in aqueous systems and processing, as a lubricant for films, yarn, and fillers, and as an emollient, skin-conditioning, antifoaming, and antistatic ingredient in formulations. RawSource supplies it as a raw material for manufacturers.

What is the difference between pharmaceutical dimethicone and standard dimethicone?

Both are polydimethylsiloxane (PDMS); the difference is grade and the specification a lot is certified against, not the base chemistry. Pharmaceutical (BP) material is supplied to compendial-grade specifications. Confirm the exact grade and CoA requirements when requesting a quote.

What viscosity grades of pharmaceutical dimethicone are available?

Dimethicone is a PDMS fluid supplied across a range of viscosities (for example the commonly referenced 350 grade). Specify your required viscosity and grade when ordering; the CoA documents the supplied lot's properties.

What HS code does pharmaceutical dimethicone ship under?

Dimethicone ships under HS 3910.00 (silicones in primary forms). Confirm the destination tariff line and import documentation with your customs broker.

How is bulk pharmaceutical dimethicone supplied?

RawSource supplies pharmaceutical-grade dimethicone in drums, totes, and IBCs to formulation and processing manufacturers, with CoA and SDS per lot. Pricing is quote-based on grade, viscosity, volume, and packaging; request a current bulk quote.

Related Products

Disclaimer. Information on this page — including properties, identifiers, hazard, transport (DOT/UN) and tariff (HS) classifications, and applications — is provided for general reference and is compiled from authoritative public sources (e.g. PubChem/ECHA, 49 CFR 172.101, the Harmonized Tariff Schedule). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot purchased governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim or advice. Always consult the current Safety Data Sheet (SDS) before handling, storage, transport or disposal, and confirm regulatory status, classification and suitability for your application and jurisdiction. Hazard, transport and tariff classifications must be verified for your specific shipment. RawSource makes no warranty, express or implied, and assumes no liability for use of this information. Trademarks. Third-party trademarks and brand names are the property of their respective owners; any reference is nominative — used only to identify a comparable product — and does not imply affiliation with, sponsorship by, or endorsement by the trademark owner.