From Sandia National Laboratory,
this video demonstrates what is a relatively simple, economical
nanotechnology coating process that enables development of nanoparticle
thin films with architectures and properties unattainable by any other
processing method.

The video simplifies things quite a bit. Rest assured, the guy on the
boardwalk who makes custom t-shirts with an
airbrush won’t be getting a job at SNL anytime soon!