Description

Hexylmethylsiloxane, 2-Phenylpropylmethylsiloxane Copolymer is a specialized organosilicon polymer engineered to deliver unique performance characteristics by combining hexyl and phenylpropyl side chains on a siloxane backbone. This copolymer is valued for its ability to modify surface properties, enhance compatibility, and act as a versatile intermediate in high-performance formulations. It is essential for manufacturers in the personal care, coatings, and specialty chemical industries seeking advanced silicone-based additives for tailored rheology, release, and sensory attributes.

Application

• Personal Care & Cosmetics: Acts as a premium emollient and sensory enhancer in skincare, sun care, and color cosmetic formulations, providing a silky, non-greasy feel.
• Release Agents & Mold Lubricants: Used in industrial molding processes (e.g., plastics, rubber, composites) to provide excellent surface release properties.
• Coatings & Inks: Functions as a flow and leveling agent, slip additive, or mar-resistant component in high-performance coating systems.
• Adhesives & Sealants: Imparts plasticizing effects and improves flexibility, adhesion, and weatherability in silicone-based and hybrid systems.
• Specialty Lubricants & Greases: Serves as a base fluid or thickener component for lubricants requiring high thermal stability and wide operating temperature ranges.
• Pharmaceutical & Medical Device Coatings: Utilized as a biocompatible coating material or drug delivery matrix component, subject to appropriate regulatory compliance.

Basic Information

Product Name	Hexylmethylsiloxane, 2-Phenylpropylmethylsiloxane Copolymer
CAS No.	68952-01-2
Molecular Formula	(C7H16OSi)x(C10H16OSi)y
Molecular Weight	Variable (Polymer)
Synonyms	Hexyl Methyl Siloxane-Phenylpropyl Methyl Siloxane Copolymer; Poly[(hexylmethylsiloxane)-co-(2-phenylpropylmethylsiloxane)]; Silicone Copolymer (Hexyl/Phenylpropyl); Phenylpropylhexylmethylsiloxane Copolymer; Methylhexylsiloxane-methyl(2-phenylpropyl)siloxane Copolymer; Dow Corning® 2503 Cosmetic Fluid (Analog); Wacker-Belsil® CM 1000 (Analog); Organomodified Siloxane Copolymer
EINECS	Contact for details

Quality Control

Our Hexylmethylsiloxane, 2-Phenylpropylmethylsiloxane Copolymer is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistent performance, including verification of viscosity, refractive index, specific gravity, and compositional analysis. Certificates of Analysis (COA) detailing all relevant specifications are provided with every shipment. We support compliance with global regulatory frameworks including REACH.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C/59-77°F). Keep away from heat, sparks, and open flame. Incompatible with strong acids, strong oxidizing agents, and strong bases. For long-term storage, consider using an inert gas blanket to maintain product integrity.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Viscosity @ 25°C	50 - 5000 cSt (Grade dependent)
Specific Gravity @ 25°C	0.95 - 1.05
Refractive Index @ 25°C	1.440 - 1.480
Assay (Siloxane Content)	≥ 98.0%
Water Content (KF)	≤ 0.1%

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