masonry paint การใช้

Gloss and masonry paint on wood.
If you really want a uniform color your best bet would be to paint the entire wall with a suitable masonry paint.
You could also apply a ready mixed latex masonry paint which does not require mixing with water, but for this you would really have to remove all of the old whitewash coating first.
Smooth / painted finishes consist of masonry paint, and are applied to a good rendered surface to give a smooth coloured effect, free of the imperfections that the more natural aggregate finishes can sometimes deliver.