Description

Decylmethylsiloxane, Butylated Aryloxypropylmethylsiloxane Copolymer is a specialized organosilicon copolymer engineered for high-performance applications. This unique chemical structure combines the lubricity and hydrophobicity of decylmethylsiloxane with the enhanced thermal stability and solubility characteristics imparted by the butylated aryloxypropylmethylsiloxane segments. It is essential for formulators seeking to improve the surface properties, release characteristics, and durability of their products. Key industries that rely on this advanced material include personal care, industrial lubricants, and high-performance coatings.

Application

• Personal Care & Cosmetics: Acts as a premium conditioning agent, emollient, and gloss enhancer in hair care products (shampoos, conditioners, styling aids) and skin care formulations, providing a non-greasy, silky feel.
• Industrial Lubricants & Greases: Serves as a high-performance base fluid or additive, offering excellent lubricity, wide temperature range performance, and compatibility with various substrates.
• Release Agents & Mold Lubricants: Used in plastic, rubber, and composite manufacturing to facilitate clean part release from molds, improving production efficiency and surface finish.
• Coatings & Inks: Functions as a flow and leveling agent, slip additive, or mar-resistant agent to enhance the surface properties, scratch resistance, and gloss of industrial and protective coatings.
• Textile & Fiber Treatment: Imparts durable water repellency (DWR), softness, and fiber lubrication during processing or as a finishing agent.
• Adhesives & Sealants: Employed as a plasticizer or processing aid to improve flexibility, reduce surface tack, and enhance weathering resistance.

Basic Information

Product Name	Decylmethylsiloxane, Butylated Aryloxypropylmethylsiloxane Copolymer
CAS No.	68440-89-1
Molecular Formula	Proprietary Copolymer (Contact for details)
Molecular Weight	Varies by grade (Contact for details)
Synonyms	Decylmethylsiloxane/butylated aryloxypropylmethylsiloxane copolymer; Silicone copolymer with decyl and aryloxypropyl groups; Butylated aryloxypropylmethylsiloxane-decylmethylsiloxane copolymer; Organosiloxane copolymer; Poly[oxy(methyloctylsilylene)]-co-poly[oxy(methyl(3-phenoxypropyl)silylene)] butylated; Silicone fluid 68440-89-1; ABIL® EM 180 (example trade name); Dow Corning® 2503 Cosmetic Fluid (example trade name)
EINECS	Contact for details

Quality Control

Our Decylmethylsiloxane, Butylated Aryloxypropylmethylsiloxane Copolymer is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistency in viscosity, refractive index, specific gravity, and functional performance. We provide comprehensive Certificates of Analysis (COA) upon request, detailing the specifications for the supplied grade. Our production adheres to relevant ISO standards, and we can support compliance documentation for REACH, FDA (indirect food contact where applicable), and cosmetic ingredient regulations (INCI).

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 strong acids and incompatible organic solvents. 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
Specific Gravity (25°C)	0.95 - 1.05
Refractive Index (25°C)	1.440 - 1.460
Viscosity (25°C), cSt	50 - 5000 (Grade dependent)
Water Content (KF)	≤ 0.1%
Assay (Active Content)	≥ 98.0%

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