What are conformal coating masking boots and why do they save you money?

Reusable conformal coating masking boots are a highly cost effective alternative masking material to masking tape.

Many components on printed circuit boards must remain uncoated when applying conformal coating. The purpose of masking is to prevent migration of the conformal coatings into components and keep out areas.

The use of masking tapes, dots and liquid latex can be an effective process in protecting components from ingress of conformal coating.

However, the application of the masking can be labour intensive, especially in higher volume applications.


The use of masking tapes, dots and liquid latex can be an effective process in protecting components from ingress of conformal coating.  However, the application of the masking materials can be labour intensive, especially in higher volume applications.

Custom made masking boots can offer a labour saving alternative in both the masking and de-masking stages of the coating process.

These completely reusable masking boots are applied over the components such as connectors, plugs and sockets that require protection from the conformal coating applied. They can be simple boots that fit over the top of a connector or a more sophisticated design such as the examples below.

They provide reliable protection for many different types of components for all the conformal coating application techniques that include batch and selective robotic spraying (as an alternative to difficult technical programming), vertical and horizontal dipping and vapour deposition of coatings such as Parylene.


Three reasons to switch from tape to reusable masking boots for conformal coating masking

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These simple reasons can save you up to 80% of your costs compared to masking tape:

  1. The masking application time is reduced. Masking boots can be 4-5 times quicker than masking tape.
  2. The de-masking (removal) time is reduced. Again it is much quicker to remove boots compared to masking tape.
  3. It is much less likely that the masking boot will leak and the component requires rework. Masking boots don’t leak and tapes can.

This means you can save a lot of money very quickly when switching to conformal coating masking boots compared to masking tapes.


Want to find out more about masking printed circuit boards before applying conformal coating?

Contact us to discuss your needs and let us explain how we can help you.

Contact us now.

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About Dr Lee Hitchens

Dr Hitchens has been working in the electronics industry and the area of conformal coatings for over 25 years in various areas including sales and technical support. He has also been training people for almost the same amount of time in all areas of conformal coating whether that is materials & equipment selection, process development or troubleshooting to help them solve their particular problem. Recently, he decided that the industry needed a specific place where all of the useful knowledge on conformal coatings could be collated for users to find easily and use in their own production process. So, Nexus was born and he began the Nexus eBook project.

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