masking

Five reasons to use custom masking boots in a conformal coating process

The problems of masking and de-masking Parylene on a circuit board assembly compared to traditional liquid conformal coating

There are several reasons why Parylene conformal coating has a more difficult masking and de-masking process compared to normal liquid conformal coatings.

These reasons include:

Why use masking boots in a conformal coating process?

Custom masking boots can provide protection for many different types of components on a circuit board from ingress of coatings.

In fact, they can form an integral part of a full masking solution in all of the conformal coating application techniques including batch and selective robotic spraying (as an alternative to difficult technical programming), vertical and horizontal dipping and chemical vapour deposition (CVD) processes such as Parylene and atomic layer deposition (ALD).

Why use masking boots in a conformal coating process?

Custom masking boots can provide protection for many different types of components on a circuit board from ingress of coatings.

How do conformal coating masking boots save money in your production process?

Masking materials such as tapes, dots and liquid latex can be highly effective in protecting components from ingress of conformal coating.

However, the masking process itself can be labor intensive, difficult and time consuming. It can add a lot to the total conformal coating costs.

Using reusable, custom masking boots offer an alternative solution.

These pre-formed shapes work by fitting simply over the components to be shielded. This process quickly replaces the masking tape and the process time is significantly reduced.

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