Description

Vinylmethylsiloxane-Octylmethylsiloxane-Dimethylsiloxane Terpolymer is a specialized silicone copolymer engineered to deliver a unique balance of properties from its distinct monomeric units. This terpolymer matters for formulators seeking to modify surface characteristics, enhance compatibility with organic materials, and improve the performance of end products. It is particularly needed by manufacturers in the personal care, coatings, adhesives, and specialty plastics industries for its versatile functionality.

Application

• Personal Care & Cosmetics: Acts as a conditioning agent, emollient, and film-former in hair care products, skin creams, and sunscreens to improve spreadability and sensory feel.
• Release Coatings & Adhesives: Used as a key component in pressure-sensitive adhesives (PSAs) and silicone release liners, offering tunable release force and adhesion.
• Plastics & Rubber Modification: Serves as an internal lubricant, processing aid, and impact modifier to enhance flow properties and surface characteristics of engineered polymers.
• Waterproofing & Protective Coatings: Imparts water repellency, weatherability, and chemical resistance to coatings for textiles, construction materials, and automotive parts.
• Fiber & Textile Treatment: Applied as a softener and finishing agent to improve fabric hand feel, reduce fiber friction, and provide durable water repellency (DWR).
• Industrial Lubricants & Greases: Functions as a base fluid or thickener in specialty lubricants requiring high-temperature stability and compatibility with plastics and elastomers.

Basic Information

Product Name	Vinylmethylsiloxane-Octylmethylsiloxane-Dimethylsiloxane Terpolymer
CAS No.	597543-32-3
Molecular Formula	Contact for details
Molecular Weight	Varies by grade (Typically 1,000 - 100,000 g/mol)
Synonyms	Vinylmethylsiloxane-Octylmethylsiloxane-Dimethylsiloxane Copolymer; Silicone Terpolymer; Poly[(dimethylsiloxane)-co-(methylvinylsiloxane)-co-(methyloctylsiloxane)]; Vinyl-Octyl-Methyl Polysiloxane; VOM Silicone Fluid; Modified Silicone Oil with Vinyl and Octyl Groups; Functionalized Polydimethylsiloxane (f-PDMS)
EINECS	Contact for details

Quality Control

Our Vinylmethylsiloxane-Octylmethylsiloxane-Dimethylsiloxane Terpolymer undergoes rigorous quality testing to ensure batch-to-batch consistency and compliance with industry standards. Key parameters such as viscosity, vinyl content, octyl content, and refractive index are strictly monitored. Certificates of Analysis (COA) documenting these specifications are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents, acids, and bases. Under these conditions, the product is typically stable for at least 24 months from the date of manufacture.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow viscous liquid
Viscosity (25°C)	100 - 50,000 cSt (Grade dependent)
Specific Gravity (25°C)	0.90 - 1.00
Refractive Index (25°C)	1.400 - 1.420
Vinyl Content (mol%)	0.1 - 10.0% (Grade dependent)
Octyl Content (mol%)	1.0 - 30.0% (Grade dependent)
Volatile Content	≤ 1.0%

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