It's recommended that you apply decals to surfaces that have been painted with an eggshell or satin finish rather than matte or flat paints. Textured surface walls may be a bit difficult for decals. However, we do have a version of CoverAlls with extra adhesive. It is about 30% stronger to deal with textured walls and floors. Let us know in the notes that you'd like that version and we'll print on it rather than the normal material. There are new paints out on the market that claim they are stain & dirt resistant — those are the most difficult for wall decals because these paints contain silicone. Almost nothing sticks to silicone. If you have this kind of paint, consider painting over the section where your mural will be. Paint must be allowed to fully dry and cure for at least 3 weeks before applying decals. If you're not sure, contact us for a free test decal. No refunds are available for incompatible paints or surfaces.