Protecting Electronics from Corrosive Operating Environments

Conformal coatings are thin polymeric films, which cover and protect solder joints, the leads of electronic components, exposed traces and other metallized areas on PCBs, from corrosion in their end operating environments. Humidity, condensation, salt-spray, corrosive gases or a combination of all of these elements, activate the start of the corrosion process, which can be accelerated by residues from soldering and other assembly processes prior to coating.