Mixing White Paint into Ceiling Knockdown Mud
I have added paint to mud with mixed results. The mud dilutes the paint color making it hard to match areas that are not sprayed. I have had good luck adding primer to mudd that appeared to reduce the ussage of primer before painting but probably the total amount of primer was about the same. 1 note of caution. With straight mud overspray is really easy to clean when paint is added now cleanup of overspray is a bear. Calculating the amount of mud is hard to guess because we don't know if you want orange peal (a light texture) or a heavy plaster knock down look (heavy texture). Drywall mud usually drys chalk white, much like the center between the paper.