Introduction to Parylene

Parylene refers to a family of high-performance polymers whose main molecular backbone consists of p-phenylene groups (–C₆H₄–) linked by 1,2-ethanediyl bridges (–CH₂–CH₂–).

Parylene is produced through the vapor-phase polymerization of p-xylylene (H₂C=C₆H₄=CH₂), forming dense, uniform, pinhole-free conformal coatings under room-temperature and vacuum conditions.

Thanks to its outstanding barrier properties, electrical insulation, biocompatibility, and chemical stability, Parylene is widely used as a protective coating for critical components across various industries.

Major Application Areas of Parylene

1. Aerospace and Defense

In aerospace and defense industries, Parylene effectively protects precision electronics and critical components from extreme temperature fluctuations, intense UV exposure, radiation, and harsh environmental conditions, significantly enhancing equipment reliability and service life.

2. Medical Devices

With excellent biocompatibility and corrosion resistance, Parylene is widely applied in implantable devices, catheters, surgical instruments, and medical electronics, ensuring safety and long-term performance in the human body.

3. Optical Applications

Parylene coatings exhibit exceptional optical transparency, making them suitable for optical lenses and precision optical components by reducing reflection losses and improving overall optical performance.

4. Electronics and Semiconductors

Parylene is extensively used to protect electronic components, circuit boards, and sensors from moisture, corrosive gases, and chemical media, significantly improving product stability and operational lifespan.

5. Consumer Electronics and Industrial Products

In products such as smartphones, wearable devices, and precision instruments, Parylene provides thin, lightweight, and durable protective coating solutions.

FANGCUNDA — Professional Parylene Dimer Manufacturer

FANGCUNDA has focused on the independent R&D and large-scale production of Parylene raw materials for over 10 years. The company has accumulated deep expertise in Parylene synthesis, performance optimization, and quality consistency.

Over the years, Fangcunda has continuously supplied high-quality Parylene raw materials to globally renowned brand customers. Its products benchmark international top-tier standards, offering stable supply capabilities and customized solutions.

Core Advantages of Fangcunda

✔ Proprietary core technologies and mature mass-production processes

✔ Complete product portfolio of multiple Parylene powder series

✔ Strict quality control system ensuring high batch-to-batch consistency

✔ Customized material solutions tailored to diverse industry requirements

✔ Long-term service to high-end industries such as aerospace, medical, and electronics

FANGCUNDA Parylene Powder Product Series

1. Parylene AF4

Parylene AF4 powder features exceptional high-temperature resistance, UV resistance, and radiation resistance. It offers the highest permeability, the lowest coefficient of friction, and the lowest dielectric constant among Parylene materials.

It can be used continuously at temperatures up to 350 °C, and up to 450 °C for short-term exposure (24 hours), making it an ideal material for protecting components in aerospace and extreme environmental conditions.

2. Parylene C

Parylene C powder combines excellent electrical and mechanical properties. Its coatings exhibit extremely low permeability to moisture and corrosive gases.

3. Parylene F

Parylene F powder inherits the UV resistance and wide temperature tolerance of AF4, with a long-term operating temperature of up to 200 °C.

4. Parylene DM

Parylene DM is a unique new member of the Parylene family, integrating outstanding barrier properties, electrical insulation, and mechanical strength. It provides superior moisture protection and resistance to corrosive solvents and gases, meeting the stringent environmental requirements of advanced industries.

5. Parylene N

Parylene N powder is halogen-free and offers excellent dry lubrication and anti-adhesion performance. It features superior permeability and high dielectric strength.

6. UVF (Parylene Fluorescent Powder)

Due to its high optical transparency, conventional Parylene coatings are difficult to visually detect. Parylene UVF coatings emit fluorescence under specific light sources, enabling fast and efficient inspection.

All performance characteristics of Parylene UVF coatings are fully equivalent to those of the corresponding standard Parylene coatings.

Shenzhen Fangcunda remains committed to technological innovation and customer-oriented development, continuously expanding the application boundaries of Parylene materials in high-end industries.

We provide reliable, stable, and customizable raw material solutions for protective coatings.

For more product information or application support, please feel free to contact us.