Description

Dotriacontamethylpentadecasiloxane is a high molecular weight, linear polydimethylsiloxane (PDMS) fluid, a key member of the silicone oil family. This compound is valued for its exceptional thermal stability, low surface tension, and excellent dielectric properties, making it a versatile functional fluid and chemical intermediate. It is primarily utilized in industries requiring high-performance lubricants, release agents, and inert fluid phases.

Application

• High-temperature lubricant and damping fluid for specialized mechanical and aerospace applications.
• Primary ingredient or intermediate in the formulation of silicone-based release agents for molding and industrial processes.
• Dielectric fluid and heat transfer medium in specialized electrical and electronic cooling systems.
• Base fluid for high-viscosity polishes, coatings, and surface treatment formulations.
• Chemical intermediate for the synthesis of modified silicones and silicone copolymers.
• Inert fluid phase for laboratory and analytical equipment.
• Additive to enhance the lubricity and water repellency of various industrial formulations.

Basic Information

Product Name	Dotriacontamethylpentadecasiloxane
CAS No.	2471-11-6
Molecular Formula	C32H96O14Si15
Molecular Weight	1157.98 g/mol
Synonyms	Polydimethylsiloxane, 15 cSt; Dimethyl Silicone Oil (15 cSt); PDMS 15; Linear Pentadecamethyloctasiloxane; Hexadecamethylheptasiloxane (related isomer); Silicone Fluid 15 cSt; Methyl Silicone Oil; Dow Corning 200 Fluid (15 cSt variant); Shin-Etsu KF-96-15cs; Polymethylsiloxane
EINECS	219-598-7

Quality Control

Our Dotriacontamethylpentadecasiloxane is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure consistency in viscosity, purity, and performance characteristics. A Certificate of Analysis (COA) detailing key specifications is provided with every shipment to guarantee compliance with your technical requirements.

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 acids. For long-term storage, sealing under an inert atmosphere such as nitrogen is recommended to prevent moisture absorption and oxidative degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Viscosity at 25°C	14.5 - 15.5 cSt
Specific Gravity at 25°C	0.955 - 0.965
Refractive Index at 25°C	1.402 - 1.404
Flash Point	> 300 °C
Volatile Matter	≤ 0.5% (w/w)

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