Practical conformal coating masking techniques

Co-Authors and contributors


Techniques for masking components, connectors, test points, mounting holes and via’s have been developed with years of experience and standard methods now exist.

Nexus have collated a range of masking videos covering different materials including masking tapes, dots, liquid latex and masking boots.

Categories

Masking with tape

Masking with latex

Masking with boots


Masking with tape

Connector 1 – Male Connector

Masking of a large oblong male connector with a single piece of masking tape ready for conformal coating spraying.

This masking technique would be unsuitable for dipping or Parylene.

Video courtesy of SCH Technologies


Connector 2 – female connector

Masking of a square female connector with masking tape ready for conformal coating spraying.

This masking technique would be unsuitable for dipping or Parylene.

Video courtesy of SCH Technologies


Connector 3 – female connector

Masking of a square female connector with masking tape conformal coating spraying.

This masking technique would be unsuitable for dipping or Parylene.

Video courtesy of SCH Technologies


Connector 4 – male connector with tabs


Masking of a large oblong male connector with tabs with a single piece of masking tape.

This masking technique would be unsuitable for dipping or Parylene.

Video courtesy of SCH Technologies


Connector 5 – male connector with tabs

Masking of a large oblong male connector with tabs with a single piece of masking tape.

This masking technique would be unsuitable for dipping or Parylene.

Video courtesy of SCH Technologies


Connector 6 – small male connector

Masking of a small oblong male connector with masking tape.

This masking technique would be unsuitable for dipping or Parylene.

Video courtesy of SCH Technologies


Masking with latex

Latex – masking LEDs

Masking a set of LEDs on a circuit board with liquid latex.

This masking technique would be suitable for dipping or Parylene.

Video courtesy of SCH Technologies


Latex – masking sensor

Masking a sensor on a circuit board with liquid latex.

This masking technique would be suitable for dipping or Parylene if the sensor is sealed from below.

Video courtesy of SCH Technologies


Masking with boots

Complete board masked with boots 1

Masking a complete circuit board with reusable masking boots.

This masking technique would not be suitable for dipping or Parylene as the boots are not sealed.

Video courtesy of SCH Technologies


Section of a board masked masked with boots 2

Masking a section of a circuit board with reusable masking boots.

This masking technique would not be suitable for dipping or Parylene as the boots are not sealed.

Video courtesy of SCH Technologies


Section of a board masked masked with boots 3

Masking a section of a circuit board with reusable masking boots.

This masking technique would not be suitable for dipping or Parylene as the boots are not sealed.

Video courtesy of SCH Technologies