Description

C20-24 Alkyl Methicone is a high-performance organomodified silicone fluid, specifically a linear alkyl-substituted methyl siloxane. This compound is valued for its unique ability to impart exceptional water repellency, lubricity, and a soft, dry feel to surfaces and formulations. It is a critical ingredient for formulators seeking to enhance the performance and sensory profile of personal care products and industrial coatings. Key industries that utilize this specialty silicone include cosmetics, hair care, and surface treatment technologies.

Application

• Hair Care Products: Acts as a conditioning agent and detangler in shampoos, conditioners, and hair serums, providing excellent slip and a non-greasy, silky feel.
• Skin Care & Cosmetics: Used in creams, lotions, sunscreens, and makeup (foundations, primers) to improve spreadability, water resistance, and deliver a smooth, matte finish.
• Color Cosmetics: Enhances the texture and application of lipsticks, eyeshadows, and powders, improving pigment dispersion and wear.
• Antiperspirants & Deodorants: Provides a dry, comfortable feel and improves the glide of stick and roll-on formulations.
• Industrial & Textile Coatings: Imparts durable water repellency (DWR) and stain resistance to fabrics, leather, paper, and non-woven materials.
• Release Agents & Lubricants: Serves as an effective mold release agent for plastics and rubbers, and as a lubricant in various mechanical applications.
• Surface Modification: Used to treat pigments and fillers to improve their compatibility and dispersion in organic polymer matrices.

Basic Information

Product Name	C20-24 Alkyl Methicone
CAS No.	200074-77-7
Molecular Formula	Typically CnH2n+1(CH3)SiO (where n=20-24), mixture
Molecular Weight	Varies by alkyl chain distribution. Contact for details.
Synonyms	C20-24 Alkyl Methicone; Alkyl (C20-24) Methicone; C20-24 Alkyl Methyl Siloxane; Linear C20-24 Alkyl-Substituted Methylsiloxane; Polysiloxane, C20-24-alkyl methyl; Silicone Fluid AK 35000 (trade name example); Dow Corning 2503 Cosmetic Wax (related product); Abil Wax 9801 (related product)
EINECS	Contact for details.

Quality Control

Our C20-24 Alkyl Methicone is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistency in viscosity, refractive index, alkyl content, and purity, meeting the specifications required for personal care and industrial applications. Certificates of Analysis (COA) are available upon request, and we can support compliance with relevant standards such as ISO 22716 (Cosmetics GMP) and 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). Keep away from strong oxidizing agents and heat sources to maintain product integrity.

Specification

Item	Specification
Appearance	Clear to slightly hazy viscous liquid or soft solid (wax-like)
Color (Gardner)	≤ 2
Viscosity @ 25°C	Specification available upon request
Refractive Index @ 25°C	Specification available upon request
Assay (Alkyl Methicone Content)	≥ 95% (by GC or NMR)
Specific Gravity @ 25°C	0.85 - 0.95
Flash Point	> 200 °C

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