[villagetinker]

Not sure what 'skim coating' is, but I have found the spray on orange peel coating is very effective at matching the existing orange peel. These spray cans have a setting valve, I use a scrap piece of dry wall as a test piece to see if i have the setting right, as i recall the light to slightly medium works well. Next the paint MUST be the same color but also the same finish, this is very important, anything other than flat on a flat finished wall will stick out like a sore thumb even if the color matches exactly