Designing for Selective Robotic Conformal Coating Processing: Rule 10 “Treat connectors with respect!”
Conformal coating and connectors are the ultimate problem for processing with a spray valve or gun. Any coating close to a connector could wick (suck up into) a connector very easily and ruin the component. Therefore, a strategy for handling coating around connectors is required.
Use conformal coating gel around connectors if you want to get close to the connector with the material. Conformal coating materials will flow freely into unsealed connectors and wick up connector leads.
The Rules for Selective Conformal Coating are straightforward. Follow them and you can save money and time in your application process. However, if the Rules are not followed, the resultant circuit board design can challenge even the most sophisticated conformal coating system and its operator to achieve the finish desired.
Click Designing Circuit Boards for Selective Robotic Conformal Coating for further Rules.