Description : If the painting is a rich color, do I need to scratch it before painting again? It doesn't peel. If it scratches, does the wall need to be repaired? And how to remove a greasy stain behind a wall? Thank you.
Last Answer : Deep color overlaps worse. It also depends on what color it is. If it is a common painting, there is no need to scratch. If there are already more layers, I recommend scraping. If you are going to ... *** better incorporates the color into the wall, they peel off and the painting lasts longer.