Perfluorodecyltrimethoxysilane DEF Solvent

Perfluorodecyltrimethoxysilane (DEF) – Fluorinated Solvent for Electronics Cleaning and Surface Treatment

Basic Information

• Product Name: (Heptadecafluoro-1,1,2,2-tetrahydrodecyl)trimethoxysilane (DEF)

• CAS Number: 83048-65-1

• Molecular Formula: C₁₃H₁₃F₁₇O₃Si

• Molecular Weight: 568.3 g/mol

• Appearance: Colorless transparent liquid

• Boiling Point: 247°C

• Relative Density: 1.54 g/cm³

• Flash Point: 65°C

Overview
DEF (Perfluorodecyltrimethoxysilane) is an environmentally friendly fluorinated solvent primarily developed for precision cleaning of LCD, LED, and OLED display panels. Its unique fluorinated structure provides excellent wetting and solvency for removing organic contaminants without leaving residues, making it ideal for high‑purity electronics manufacturing.

Key Properties

• Excellent water and oil repellency – imparts hydrophobic and oleophobic properties to treated surfaces.

• Good light transmission – suitable for optical applications.

• High chemical stability – resistant to acids, alkalis, and UV degradation.

• Low surface tension – enables effective wetting and penetration.

• Eco‑friendly profile – low toxicity and low environmental persistence compared to older fluorinated solvents.

Applications

• Electronics cleaning: Precision cleaning of LCD, LED, and OLED display panels, removing flux, oils, and particulate contaminants.

• Surface treatment: Imparts water‑repellent, anti‑fouling, and self‑cleaning properties to glass, ceramics, granite, ceramic tiles, natural stone, wood, and plastic composites.

• Building materials: Applied as anti‑soiling coatings for architectural surfaces.

• Sol‑gel systems: Used as an additive in sol‑gel formulations to introduce fluorinated functionality.

• Fluorosilicone synthesis: Intermediate for fluorinated silicone polymers and coatings.

• Cosmetics: Used in surface coating of pigments for improved dispersibility and feel.

• Chemical Vapor Deposition (CVD): Precursor for fluorinated thin films in semiconductor and optical applications.

Recommended Use
For cleaning: Use as a rinsing or dipping solvent, typically followed by drying. For surface treatment: Apply as a dilute solution (0.1–2% in suitable organic solvents) via dipping, spraying, or CVD. Optimal concentration depends on substrate and desired performance.

Handling and Storage

• Store in a cool, well‑ventilated place, away from heat, sparks, and direct sunlight.

• Keep containers tightly sealed to prevent evaporation and contamination.

• Use appropriate personal protective equipment (gloves, safety goggles, protective clothing) when handling.

• Avoid contact with strong oxidizers and acids.

Packaging
Available in 1 kg, 5 kg fluoropolymer bottles, or 20 kg, 25 kg PVDF‑lined drums. Custom packaging upon request.

Quality Assurance
Each batch is analyzed for purity (by GC), water content, and physical properties to ensure consistent performance.