Things you should know about Parylene

What is Parylene?

Parylene is a conformal coating that is deposited as a gas in a vacuum chamber.

It is a completely different process to the liquid conformal coatings and its properties offer advantages and disadvantages in comparison.

Parylene is a dry process compared to the standard “wet” liquid conformal coatings.

Since Parylene is deposited as a gas its thickness is almost uniform across the whole circuit board.

 

The ABCs of Parylene

Parylene is an organic polymer conformal coating that is deposited as a gas in a vacuum chamber.

Therefore, the Parylene application process is a completely different process to the liquid conformal coatings.

This gives Parylene unique properties that are not possible with the typical liquid conformal coatings normally used in electronics protection.

 

Five key facts about Parylene

  1. Parylene is the trade name for a variety of poly(p-xylylene) polymers
  2. It is a conformal coating that is deposited as a gas in a vacuum chamber. This is different to liquid conformal coatings.
  3. The Parylene film is created via a controlled Chemical Vapor Deposition (CVD) process.
  4. It is a dry process compared to the standard “wet” liquid conformal coatings.
  5. This process makes Parylene a highly effective moisture and dielectric barrier that outperforms most liquid conformal coatings.

 

Three important points you should know about Parylene

  1. Parylene has unique properties that are not possible with the liquid conformal coatings.
  2. Parylene is a conformal coating that is deposited as a gas in a vacuum chamber.
  3. This is different to liquid conformal coatings that can be brushed, dipped or sprayed.

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The goal of the Nexus Conformal Coating Technical database is to provide an industry standard information database source for all conformal coating processing and related areas. Areas covered include process descriptions, How To Guides, videos of conformal coating processes and a defect library.

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Parylene Conformal Coating Explained in the Nexus Technical Database

Nexus have a full section of information on Parylene Conformal Coating in their Technical Database. Information includes:

  • Parylene Material Description
  • What Is Parylene?
  • Characteristics and advantages
  • Typical applications

Nexus brings together the accumulated knowledge of a uniquely qualified group of conformal coating and electronics material dispensing consultants, who are focused on helping electronics manufacturing clients improve their conformal coating processes.

Whichever service or product you seek, Nexus3C can help you find it.

Contact Nexus for their Parylene Conformal Coating Section

Nexus Launch a Range of How To…. Guides for Conformal Coating

Nexus are launching a range of Conformal Coating How To Guides in June through the Technical Database.

Nexus brings together the accumulated knowledge of a uniquely qualified group of conformal coating and electronics material dispensing consultants, who are focused on helping electronics manufacturing clients improve their conformal coating processes.

Whichever service or product you seek, Nexus3C can help you find it.

Contact Nexus for their Range of How To Guides for Conformal Coating

 

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Descriptions of Conformal Coating Materials, Equipment & Processes  is available in the Nexus Technical Database offering general understandng and links to images, videos and further technical links

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