Originally Posted by
JoeinWestMich
If you are willing to invest some time, I would suggest getting a good quality airbrush. You can use acrylic or even latex paints thinned properly and get a very fine line. I can spray letters MUCH faster than I can using a fine brush. But it takes a bit of practice.... more than say a HVLP sprayer. But once you get the hang of it, it might pay off down the road. I got my practice in from years of making plastic models. With an airbrush, I could paint fine seam lines and rivets with virtually no overspray. And those are much smaller than the dimensions of the letter carves you are making. Maybe someone out there is actually using one for signs and can give you a suggestion as to best airbrush for this purpose. I don't make signs (maybe one or two here or there) so I wouldn't want to steer you wrong, and my airbrush is now almost 20 years old.