Improvement of pretreatment for electroplating on epoxy resin potting.

Aiming at the poor adhesion of coating electroplated on epoxy-potted components, the epoxy resin potting was treated by sandblasting, and then roughened by plasma etching instead of immersion in a bath comprising chromic acid and sulfuric acid prior to electroplating. The thickness, adhesion, and reliability of the coating electroplated on the epoxy resin potting pretreated by the said methods meet the requirements of products for aerospace applications. [ABSTRACT FROM AUTHOR]