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Parylene

Parylene

Parylene is a polymer that is often used to coat surfaces. All Parylene coatings are produced by a vapor phase process in a vacuum chamber at room temperature. The monomer condenses and polymerizes on the surface, forming a uniform and conformal layer that follows the surface topography. The monomer is produced outside the coating chamber, so the chamber is not heated. Coating takes place at room temperature.

Advantages

  • Resistance to acids and alkalis
  • Protects against moisture and dust
  • USP Class VI biocompatible
  • Excellent thermal stability up to 450°C
  • Excellent corrosion protection
  • Parylene is FDA certified
  • Parylene has greater abrasion resistance and better sliding properties than PTFE

Examples of applications for Parylene coatings:

These examples are intended to give you an overview of the use of Parylene coatings. However, there are many other applications where Parylene can use its unique properties to improve surfaces and protect sensitive components.

  • Electronics: Parylene is often used on electronic components and circuit boards to protect them from moisture, chemicals and corrosion. The thin and flexible coating does not affect the electrical conductivity of the components.
  • Medical devices: Parylene coatings are used in medical technology to protect implants, medical sensors and components of medical devices. The coating provides a barrier against body fluids and prevents the penetration of bacteria.
  • Optics: Parylene can be used as a protective coating for optical components such as lenses, prisms and mirror coatings. It improves resistance to environmental influences and prevents fogging of optical surfaces.
  • Micromechanics: Parylene coatings are used in micromechanics and microsystems technology. They provide protection for micromechanical components such as sensors, actuators and MEMS (microelectromechanical systems).
  • Protective coatings: Parylene can be used as a general protective coating for a variety of materials and surfaces. It protects against moisture, chemicals, corrosion and abrasion.
  • Aerospace: Parylene is also used in the aerospace industry to protect electronic components and parts from extreme environmental conditions such as vibrations, temperature fluctuations and high vacuum.

Our Parylene coating systems

Would you like to coat your products with Parylene yourself? No problem, we have developed three different sizes of Parylene coating systems to cover the various industrial applications.

Parylene N Parylene C Parylene D Parylene F
Density (g / cm)3) 1,11 1,29 1,42 1,32
Rockwell hardness R85 R80 R80 R120
Coefficient of friction
Statisch / Dynamisch
0,25 / 0,25 0,29 / 0,29 0,33 / 0,31 0,14 / 0,13
Thermal stability
Permanent / short-term (°C)
90 / 120 125 / 200 160 / 300 350 / 450
Dielectric strength
(V / μm)
280 230 220 210
Dielectric constant
@ 60 Hz
2,65 3,15 2,84
Refractive index 1,661 1,639 1,669 1,559
UV stability No No No Yes
Water absorption
(% / Tag)
0,01 0,06 <0,1 <0,01
Coating temperature Ambient temperature

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Parylene Types
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Parylene Types
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