Parylene Benefits and Processes

Posted by Jake Hinojoza on Oct 31, 2017 9:00:00 AM
Jake Hinojoza

When considering to conformal coating to use to protect your product, there are a lot to choose from. And more than just the conformal coating properties are taken into account. Cost, availability, and even logistic play a role in deciding what coating to use.

However, taking all of those factors account, parylene coating is one of the most used coatings because of its wide range of benefits and characteristics.


Parylene is known to be one of the strongest, longest-lasting, and most reliable conformal coatings on the market today. It's used for products used for space travel, microwaves, and medical devices. Magnets of different shapes and kinds rely on parylene's protective coating without hindering functionality.

Few other conformal coatings types match parylene benefits and superior protection qualities.

Parylene Benefits

Parylene offers a wider range of protection over other conformal coatings offered. It also has a larger range of control and the wide variety of uses.

  • Protection. Parylene adds a layer of protection against environmental, chemical, and gaseous threats. It also helps keeps moisture and contaminants from interrupting functionality and longevity. Parylene provides protection in environments as harsh as outer space and extreme heat.

  • Control. Unlike some other conformal coatings, parylene can be controlled with precision. It goes in a gaseous state which avoids issues such as pooling and pinholes, while controlling thickness.

  • Variety. Parylene can protect glass in extreme cold, ceramics in extreme heat, and anything in between. Any substrate surfaces, any environment--parylene provides strong, reliable defense.

Appreciating the Application

Now that we have covered the why parylene is superior to other conformal coatings, now let's look at how the application process gives parylene the upper hand to other conformal coatings.

In the beginning stages of choosing the right conformal coating, it's important to understand what thickness is needed, what environment the medium will be subjected too and if any radicals can contact the medium.

A Closer Look

What is involved in the application of conformal coating? Which necessary steps are most often overlooked? Let our conformal coating experts explain!

  • Cleaning. One of the biggest enemies to a successful and long-lasting coating is preexisting contamination. If the material itself is unclean before application, the coating won't bond properly and won't be able to provide a high level of protection. This is why cleaning is often one of the most important parts of the application process.

  • Thickness. It is evident from the onset of any project that coating thickness must be precise to be efficient. As it turns out, the application process has a significant influence on the thickness and the overall coverage of a conformal coating. Different techniques result in different levels of precision, which means that this is one step that can't be overlooked.

  • Details. When it comes to the application process, otherwise-small details become crucial. For example, the temperature during application can impact the consistency of the coating, while humidity and ventilation affect the coating's success and longevity.

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Topics: Parylene