Description

Parylene F Dimer CAS NO 1785-64-4 is a high-purity fluorinated precursor chemical specifically engineered for vapor deposition polymerization (VDP). This compound is critical for creating ultra-thin, conformal, and chemically inert Parylene F (also known as Parylene HT®) coatings. It is essential for manufacturers requiring advanced surface protection with exceptional thermal stability, low dielectric constant, and superior moisture barrier properties. Key industries that rely on this material include microelectronics, medical device manufacturing, aerospace, and advanced automotive sensors.

Application

• Conformal Coating for Electronics: Used in the vapor deposition process to create pinhole-free, dielectric Parylene F coatings on printed circuit boards (PCBs), flexible circuits, and MEMS devices for moisture, chemical, and dielectric insulation.
• Medical Device Encapsulation: Provides a biocompatible, USP Class VI barrier for implantable medical devices, sensors, and surgical tools, offering long-term stability in vivo.
• Aerospace & Defense Components: Protects sensitive avionics, connectors, and optical components from harsh environments, including wide temperature fluctuations and corrosive agents.
• Advanced Semiconductor Packaging: Serves as an interlayer dielectric (ILD) or final passivation layer in high-density semiconductor packages due to its low dielectric constant and thermal stability.
• Automotive & Sensor Protection: Shields automotive sensors, LiDAR components, and control units from under-hood fluids, condensation, and thermal stress.
• Cultural Heritage Preservation: Used to create protective, invisible coatings on delicate artifacts, papers, and textiles in museum conservation.
• Optics and Photonics: Coats optical fibers, lenses, and laser components where clarity, durability, and specific refractive indices are required.

Basic Information

Product Name	Parylene F Dimer
CAS No.	1785-64-4
Molecular Formula	C16H16F4
Molecular Weight	276.29 g/mol
Synonyms	Poly(α,α,α',α'-tetrafluoro-p-xylylene) Dimer; 1,1,2,2,9,9,10,10-Octafluoro[2.2]paracyclophane; Parylene HT® Dimer; AF4 Dimer; Tetrafluoro-p-xylylene dimer; Fluorinated Parylene Dimer; [2.2]Paracyclophane, 1,1,2,2,9,9,10,10-octafluoro-; α,α,α',α'-Tetrafluoro-p-xylylene dimer
EINECS	Contact for details

Quality Control

Our Parylene F Dimer is manufactured under stringent controls to ensure batch-to-batch consistency and high performance in vapor deposition systems. Quality is verified through a comprehensive suite of analytical techniques including Gas Chromatography (GC), Nuclear Magnetic Resonance (NMR), and Differential Scanning Calorimetry (DSC) to confirm identity, purity, and thermal properties. A Certificate of Analysis (COA) detailing purity, melting point, and impurity profiles is provided with each shipment. Our quality management system supports compliance with relevant industry standards for electronics and medical device applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). The product is moisture-sensitive; keep the original container tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent oxidation or hydrolysis. Isolate from strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 99.0%
Melting Point	285 - 295 °C
Heavy Metals (as Pb)	≤ 10 ppm
Residue on Ignition	≤ 0.1%
Moisture Content (KF)	≤ 0.1%

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