Description

Dimethicone is a versatile organosilicon polymer, widely recognized for its exceptional inertness, water repellency, and lubricating properties. Its primary value lies in its ability to form a protective, breathable barrier and modify surface characteristics across a vast range of industrial and consumer applications. This makes it an indispensable ingredient for manufacturers in the personal care, pharmaceutical, food, and industrial sectors seeking reliable performance enhancers.

Application

• Personal Care & Cosmetics: Acts as a key emollient, skin protectant, and conditioning agent in lotions, creams, sunscreens, shampoos, conditioners, and antiperspirants, providing a smooth, non-greasy feel.
• Pharmaceuticals: Used as an active ingredient in topical ointments for skin protection (e.g., barrier creams for diaper rash) and as an anti-foaming agent in digestive remedies.
• Food Industry: Employed as an anti-foaming agent (E900) in food processing (e.g., frying oils, juice production) and as a release agent for baking and confectionery molds.
• Industrial & Manufacturing: Serves as a mold release agent for rubber, plastics, and polyurethane; a defoamer in aqueous systems and lubricants; and a water repellent for textiles and construction materials.
• Polishes & Coatings: Imparts high gloss, water beading, and protective properties to automotive, furniture, and floor polishes.
• Electrical & Electronics: Used as a dielectric fluid and protective coating due to its thermal stability and electrical insulation properties.

Basic Information

Product Name	Dimethicone
CAS No.	9006-65-9
Molecular Formula	(C2H6OSi)n • (C3H8OSi)m
Molecular Weight	Varies by viscosity grade
Synonyms	Polydimethylsiloxane (PDMS); Dimethylpolysiloxane; Dimethyl silicone oil; Methyl polysiloxane; Silicone fluid 200; SIMETHICONE (USP); α-Methyl-ω-methoxypolydimethylsiloxane; Poly(dimethylsiloxane)
EINECS	203-492-7

Quality Control

Our Dimethicone is produced and tested under strict quality management systems. We offer various grades, including Industrial, Cosmetic, Food (FCC), and Pharmaceutical (USP/EP) specifications. Each batch is accompanied by a comprehensive Certificate of Analysis (COA) verifying key parameters such as viscosity, refractive index, specific gravity, and purity. Our quality commitment ensures compliance with relevant standards such as REACH, FDA 21 CFR, and ISO guidelines where applicable.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents and open flames. For long-term storage under optimal conditions, an inert atmosphere (nitrogen) is recommended.

Specification

Item	Specification
Appearance	Colorless, clear viscous liquid
Identification (IR)	Conforms
Viscosity (at 25°C)	Specified grade (e.g., 50 cSt, 100 cSt, 1000 cSt)
Refractive Index (n20D)	1.400 - 1.410
Specific Gravity (25°C)	0.960 - 0.980
Assay (as Polydimethylsiloxane)	≥ 98.0%
Volatile Matter	≤ 1.0%
Heavy Metals (as Pb)	≤ 10 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.