Conformal coating is a thin protective film applied to the surface of PCBs to shield them from environmental factors such as moisture, dust, chemicals, and temperature extremes. This protective layer enhances the reliability and longevity of electronic devices by preventing damage caused by harsh conditions.

The application of conformal coating involves a meticulous process. Before coating, PCBs undergo thorough cleaning to remove any contaminants. The coating is then applied evenly to ensure complete coverage, and curing follows to create a durable and protective layer.One significant advantage of conformal coating is its ability to protect PCBs without altering their electrical properties. The coating must strike a delicate balance, being thin enough not to interfere with the functionality of components while providing robust protection against external elements.