Description

Bis(tridecafluoro-1,1,2,2-tetrahydrooctyl)tetramethyldisiloxane is a high-performance fluorinated siloxane compound, valued for its exceptional surface activity, thermal stability, and chemical inertness. Its unique molecular structure, featuring a perfluorinated alkyl chain linked to a disiloxane backbone, provides outstanding hydrophobic, oleophobic, and release properties. This makes it a critical material for advanced manufacturing in sectors demanding extreme performance, including electronics, specialty coatings, and high-value industrial applications.

Application

• As a key additive or surfactant in fluorinated coatings and paints to enhance water and oil repellency, stain resistance, and leveling.
• As a surface treatment agent for textiles, leather, and paper to impart durable water and stain resistance.
• As a mold release agent in the production of plastics, rubber, and composite materials, providing excellent non-stick performance.
• As a lubricant and anti-foaming agent in specialty fluids and high-performance lubricants for demanding industrial environments.
• As a intermediate in chemical synthesis for creating more complex fluorinated siloxanes and silicone polymers with tailored properties.
• In the formulation of electronic chemicals, such as anti-fingerprint coatings for displays and protective layers for sensitive components.
• For surface modification of nanoparticles and fillers to improve dispersion in fluoropolymer matrices.

Basic Information

Product Name	Bis(tridecafluoro-1,1,2,2-tetrahydrooctyl)tetramethyldisiloxane
CAS No.	71363-70-7
Molecular Formula	C22H16F26O2Si2
Molecular Weight	794.50 g/mol
Synonyms	1,1,1,2,2,3,3,4,4,5,5,6,6-Tridecafluoro-8-[(1,1,1,2,2,3,3,4,4,5,5,6,6-tridecafluoro-8-{[tris(1,1-dimethylethyl)silyl]oxy}octyl)oxy]-8-(2-methyl-2-propanyl)-1,3,5,2,4,6-trioxatrisilinane; 1,1,3,3-Tetramethyl-1,3-bis(3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyl)disiloxane; 1,3-Bis(3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyl)-1,1,3,3-tetramethyldisiloxane; F13-TMS; Fluorinated siloxane; Perfluorooctyltetramethyldisiloxane; Tris(tert-butoxy)(3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyl)silane
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Quality Control

Our Bis(tridecafluoro-1,1,2,2-tetrahydrooctyl)tetramethyldisiloxane is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency meet the highest industry standards. A detailed Certificate of Analysis (COA) documenting key parameters such as assay, impurity profile, and physical properties is provided with every shipment to guarantee traceability and support your quality assurance protocols.

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 incompatible materials such as strong bases and fluorides. For long-term storage, consider using an inert atmosphere to maintain product integrity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 97.0%
Density (at 20°C)	1.55 - 1.65 g/mL
Refractive Index (n20D)	1.330 - 1.340
Water Content (KF)	≤ 0.1%

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