This professional grade vacuum fed spray gun is used for spraying gel coat, resins, parting films, tooling gel coats, sanding primers and paints. It comes with the FN6 3/16" nozzle which is specifically meant for spraying gel coats. Also, comes with a heavy duty paper cup, a graduated plastic cup and a plastic liner. Easy to use and clean up. There are nine nozzle sizes that can be ordered separately.