The present invention relates application of conformal coatings made up of nano-fiber, nano-particle, and/or nano-capsule materials to be applied on electrical component parts in general and printed circuit boards (PCB) in particular. A conformal coating material, such as Parlyne, can be combined with nano-materials to produce desired results. Benefits of this invention include enhancement of conventional conformal coatings performance in terms of properties such as mechanical, electrical, magnetic and in particular to prevent or obstruct the growth of tin whiskers or any other manufacturing defect that can develop on the surface of a PCB.