Yes and no. Obviously, you’ll want to use spray primers, as explained above. I’ll sometimes apply spray paint to a large area that requires a single color. However, this can be tricky. It often requires masking off other parts of the figure. Also, most spray colors do not come in a matte or even semi-flat variety. Most are strictly available as glossy, and these rarely dry well on plastic. I’ve had some success using glossy sprays followed by Dullcote, but it’s fairly hit or miss. I usually just buckle down and paint the whole thing with a brush. Besides, mixing paint to match a spray color in case of mistakes is tough!