Description

1H,1H,2H,2H-Perfluorooctyltrimethoxysilane is a high-performance fluorinated organosilane coupling agent, essential for imparting superior water, oil, and stain repellency to surfaces. Its unique molecular structure enables strong covalent bonding with substrates, creating durable, low-surface-energy coatings. This compound is critical for manufacturers in the electronics, textiles, coatings, and advanced materials sectors seeking to enhance product performance and longevity.

Application

• Surface Modification Agent: Used to create hydrophobic and oleophobic coatings on glass, ceramics, metals, and polymers for anti-fouling and easy-clean applications.
• Textile Finishing: Imparts durable water and oil repellency (DWR/DOR) to technical fabrics, outdoor apparel, and protective clothing.
• Electronics Protection: Serves as a moisture barrier and anti-stiction coating for micro-electromechanical systems (MEMS), printed circuit boards (PCBs), and optical components.
• Stone and Masonry Protection: Provides long-lasting water repellency and resistance to weathering and biological growth for architectural conservation and building materials.
• Paper and Packaging Treatment: Used to create grease-resistant and moisture-barrier coatings for food packaging and specialty papers.
• Additive for Polymers and Composites: Enhances the surface properties and compatibility of fillers within fluoropolymer composites and other advanced material formulations.

Basic Information

Product Name	1H,1H,2H,2H-Perfluorooctyltrimethoxysilane
CAS No.	85857-16-5
Molecular Formula	C11H9F13O3Si
Molecular Weight	464.26 g/mol
Synonyms	Perfluorooctyltrimethoxysilane; (Tridecafluoro-1,1,2,2-tetrahydrooctyl)trimethoxysilane; 1H,1H,2H,2H-Perfluorooctyltri(methoxy)silane; 3,3,4,4,5,5,6,6,7,7,8,8,8-Tridecafluorooctyltrimethoxysilane; FOTS; PFOTMS; Heptadecafluorodecyltrimethoxysilane (common misnomer); 13F-TriMOS
EINECS	Contact for details

Quality Control

Our 1H,1H,2H,2H-Perfluorooctyltrimethoxysilane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including Gas Chromatography (GC) and Nuclear Magnetic Resonance (NMR), to ensure high purity and consistent performance. A comprehensive Certificate of Analysis (COA) detailing identity, assay, and impurity profiles is provided with every shipment to guarantee compliance with your technical specifications.

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). This material is hygroscopic (moisture-sensitive); containers must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen or argon) after opening to prevent hydrolysis and maintain product integrity.

Specification

Item	Specification
Appearance	Clear colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 97.0%
Density (at 25°C)	~1.45 g/mL
Refractive Index (n20/D)	~1.33

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