So I went ahead and painted my wall with this paint. All I can say is WOW!! It is super black, and very very flat. It almost has a texture to it when it dries. It took me four coats. It shows any dust on top, and can even show fingerprints. It does however work very well. It almost totally eliminates all light spill when zooming. The only time you can really see light spill is when the projector is on throwing a blank image. Even on dark scenes in movies the spill disappears. Looks amazing! Highly recommend.
120" 2.35 Carada 1.0 gain screen with a Epson 8350 projector.