07-31-2013, 09:49 AM
First, I think Scotch Magic Tape is a very good material for model masking, since it's more flexible and can be pressed down more closely, as well as letting you see more clearly what you're cutting around underneath, so that's where I'd start, press down carefully around the window openings before you cut the window frame areas out to minimize overspray. Then be ready to touch up any overspray -- since I use an airbrush, I'm able just to touch up overspray using a brush with the same color paint from a bottle that I used in the airbrush. I assume, though, that you could use any bottled model paint with a color close to the rattle can to do brush touchup. However, applying mortar to the brick areas, and dusting them with brick-colored chalk after doing that, and then going over those areas with diluted black paint for weathering, all helps the overall effect.