What are my options for conformal coating application methods?

This is a question I am asked time and again.

Of course most people know of the selective robot and how it applies conformal coating.

However, there are many different application methods available for both liquid conformal coatings and Parylene and listed below are the common techniques:

Click on each to examine individually for details or click conformal coating application techniques for an overview.

Note, each of the various methods has different strengths and weaknesses.

However, each of these application methods should be considered in relation to the holistic approach to conformal coating processing 

What is the holistic approach to conformal coating?

The holistic approach states that you should consider the conformal coating material, the application process and the circuit board together and not as three separate entities.

I consider this approach the most fundamental issue and crucial factor in all of conformal coating processing.

Ironically, it is ignored on a regular basis.

In fact, I find that the failure to apply the holistic approach at the beginning of the conformal coating selection process is normally the root cause of many conformal coating problems.


Click conformal coating application techniques to find out more.

Need help with your conformal coating process?

Contact Nexus now and let us show you how we can help you.

Dr Lee Hitchens, Author of Nexus website and ebook

Dr Lee Hitchens is the Author of the Nexus eBook and a main contributor to Nexus.


Book now for the Conformal Coating Webinar: Guide to Design, Application & Reliability

Nexus are to hold a series of webinars on conformal coating topics in the Autumn of 2012.The series of four online conformal coating webinars will cover the following topics and each last 90 min. The next webinar will be:

Conformal Coating Guide to Design, Application & Reliability
12th November 2012

Conformal coating may be a new process to many people and its important to have a good grounding in the fundamentals before embarking on the use of coatings. An incorrect choice at the design stage can add significant cost to the product without the desired benefits. Correct selection of components and application techniques can significantly reduce cost by reducing or eliminating masking steps. A key step during design is to assess the effective reliability prior to going into full production.

Topics will include:

Why conformal coating is necessary
Types of material and their benefits
Design engineers check list
Coating application methods
Testing product reliability

Click Conformal Coating Webinars: Conformal Coating Guide to Design, Application & Reliability for further information