Light vehicles represent an important market for plastics and polymer composites, one that has grown significantly in the last five decades. Among other reasons, this is due to being inexpensive compared to their metal counterparts, to being able to mould complex geometry, to reduced weight, and to increased fuel economy due to the reduced weight. Various plastics and composites are used for automotive interiors, exteriors, electrical systems, powertrains and engine components. Their complex geometries and the non-conductive nature of the substrate mean that coatings cannot be applied using electrostatic spraying, which limits the methods for applying coatings by the conventional ...