Description

Polytetradecylmethylsiloxane is a high-molecular-weight silicone fluid characterized by its long alkyl side chains. This unique structure provides exceptional lubricity, hydrophobicity, and thermal stability, making it a valuable functional additive and base fluid. It is primarily utilized in the formulation of high-performance lubricants, release agents, and personal care products where long-lasting film formation and water repellency are critical. Industries such as plastics manufacturing, automotive, and cosmetics rely on its consistent quality and performance.

Application

• As a high-performance lubricant and anti-wear additive in specialty greases and metalworking fluids.
• As a mold release agent for plastics, rubber, and composite materials manufacturing.
• As a key ingredient in personal care products, providing emolliency and water resistance in sunscreens, creams, and makeup.
• As a surface treatment agent to impart hydrophobicity and lubricity to textiles, paper, and fibers.
• As a defoamer component in industrial processes, including paints, coatings, and adhesives.
• As a dielectric fluid or heat transfer medium in specialized electrical or thermal management applications.

Basic Information

Product Name	Polytetradecylmethylsiloxane
CAS No.	76684-67-8
Molecular Formula	(C15H32OSi)n
Molecular Weight	Varies by chain length (n). Contact for details.
Synonyms	Poly(tetradecylmethylsiloxane); Tetradecylmethylpolysiloxane; Silicone oil, tetradecylmethyl-; PDMS with tetradecyl side chains; Alkylmethylsiloxane (C14); High alkyl silicone fluid; Tetradecyl modified silicone oil; Polysiloxane, tetradecylmethyl-
EINECS	Contact for details.

Quality Control

Our Polytetradecylmethylsiloxane is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistency in viscosity, purity, and functional performance. While we offer standard industrial and cosmetic grades, our quality protocols are designed to meet the specific requirements of diverse applications. A comprehensive Certificate of Analysis (COA) detailing key parameters is provided with every shipment.

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 and heat sources to maintain product integrity.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Viscosity (25°C)	Specified grade (e.g., 100-10,000 cSt)
Specific Gravity (25°C)	0.86 - 0.92
Refractive Index (25°C)	1.440 - 1.460
Purity (Assay)	> 95% (by GPC)
Water Content	< 0.1% (by Karl Fischer)

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