Parylene Conformal Coating

We are specialists in parylene coating. Our Parylene coating services offer unparalleled protection for your components. Parylene coatings provide a thin, uniform, and pinhole-free layer of protection, ensuring excellent barrier properties against moisture, chemicals, and other environmental factors.

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Parylene (Type XY)


Parylene (Type XY)

Our Parylene N has been tested to and is certified to USP Class VI for implantable devices.Our Parylene Dimer is more than 99% pure and is MIL-I-46058C Certified and IPC-CC-830 Approved

What is Parylene ?

Parylene is a common generic name for a unique series of polymers based on paraxylene. The Parylenes are formed by the pyrolysis of a di-p-xylene (dimer) in a vacuum environment which is then deposited on the cooler, room temperature substrate within the vacuum chamber. Parylene is applied in a vacuum as a gas that disperses evenly throughout the chamber to target surfaces the material forms as a clear polymer (plastic) film. Conformal coatings are generally applied in a liquid phase by spraying, dipping, or brushing. Parylene materials form linear, highly-crystalline polymers can be usefully produced only as coatings and films. The resulting film is thin and highly conformal, has no pinholes, can completely encapsulate a substrate to protect it from many conditions such as environmental attack, moisture, chemicals, fungus, dirt and dust. The applications for Parylene coatings are far-reaching and include military devices, automotive parts, circuit boards, elastomers, O-rings and medical implants. (Parylene is biocompatible and FDA approved). In addition, Parylene is electrically insulating, make it perfect for LED signage, which requires lightweight coating that will protect electrical components from the elements. The defect-free coating, once solidified, is as invisible to the eye and is up to 100 times thinner than a human hair. Parylene typically ranges in thickness from 0.25-1 mil.


Parylene Coating Properties

  • Fully Bio-compatible

    Parylene has been FDA-approved (with USP XXII Class VI biocompatibility rating) and is safe for use within the human body. Parylene coatings protect a wide array of devices and components, including stents, pacemakers, defibrillators, hearing aids, tubes, elastomers, and more

  • Chemically inert

    Parylene is chemically and biologically inert and stable, does not readily react with any other substance or chemical, and make excellent barrier materials.

  • Non-toxic

    Parylene is routinely used in medical and bio-medical applications.

  • Clean, clear & sterile

    Parylene does not promote the growth of biologics. Its surface is unsuitable for the proliferation of bacteria and other pathogens.

  • Exceptional electrical isolation

    Parylene possesses exceptional electrical properties, notably its low dielectric constant and high dielectric strength.

  • Superior protection

    Parylene films provide superior protection against moisture, chemicals, salt water, corrosion, fumes, gases and widely varying environmental conditions as well as being Mil-l-46058C approved.

  • Chemical resistance

    Parylene resists attacks and is insoluble in all organic solvents and is resistant to and permeation by most solvents with the exception of aromatic hydrocarbons.

  • Dry lubricity

    Parylene acts as a dry film lubricant, eliminating the need for liquid release agents. 

  • Excellent Uniformity

    The Parylene process is a controlled Chemical Vapor Deposition (CVD), where the film is deposited one molecule at a time, and its thickness is completely and truly uniform to the surface. 

  • Extremely Lightweight

    Parylene has minimal added mass making it extremely lightweight; very low out-gassing.

  • Pinhole-free Coverage

    Parylene provides strong, pinhole-free coverage for crevices, sharp edges, unusual shapes, and more.

  • No Curing Cycle

    Parylene does not have a liquid phase. Therefore, it has no cure time.


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