I evenly sprayed the ceiling then skimmed a large scraper over the surface area. This knocked off almost all of the popcorn and still left the ceiling which has a textured glance. I painted it and it turned out very nice. For those who very own an older home, have http://whattodoafterremovingpopc34084.arwebo.com/13571358/the-best-side-of-popcorn-texture-removal-machine