1) Painting technique 
Overspray refers to the application of any form of paint, varnish, stain or other non-water soluble airborne particulate material onto an unintended location. This concept is most commonly encountered in graffiti, auto detailing, and when commercial paint jobs drift onto unintended objects. ==Auto detailing and drifting paint== Overspray is consid...
Sprayed paint which misses the surface to be coated.