Ask The Expert: Karl Hardcastle, SCH Services Ltd, Subcontract Conformal Coating Service on Key Conformal Coating Inspection Challenges

“One of the interesting points is not all conformal coating defects and problems show up under UV light. You really need to inspect your PCB under white light and UV light to check for different defects. What can look like a perfect coating under UV can cosmetically look awful under normal daylight!”

“Also, you cannot tell how good coating adhesion is with visual inspection only. We examine the PCB as a coating service and if it looks good that’s fine. but without testing we cannot tell how well the conformal coating has adhered.”

Visit the Nexus Associate Experts Section and read what other experts have to say about conformal coating inspection.

Introducing Nexus Associate Expert: Karl Hardcastle, SCH Technologies

Karl has worked as Coating Service Manager for SCH Technologies for seven years where he has been responsible for new product introduction (NPI) of PCBs into the coating house including conformal coating material and process selection. In the past he also technically supported Humiseal materials and works in sales for conformal coating equipment.

Each Month as part of the Nexus Newsletter a panel of experts are asked their opinions on a challenging area in conformal coating. Their responses are published to help others solve their issues.

The Experts for Conformal Coating come from a range of backgrounds and areas allowing a wide scope for knowledge transfer.

Click here to View the Nexus Associate Conformal Coating Experts.

Please note that all of the Associate conformal coating technical experts express their own opinions free of charge and have no financial affiliation to Nexus.  Any opinions expressed by the experts is not the viewpoint of Nexus3c Ltd.