I may try that if wetting it doesnt work. I have only had that not work one time and even then i still managed to get the paint off of the ceiling and still leave the popcorn, then had to remove that. I ended up with a 20X 30 sheet of paint that i rolled up into a ball. the steam thing seems like alot of work.I removed painted popcorn using a $50 wallpaper steamer I bought at Home Depot (which has gotten lots of use since house was covered in wallpaper and popcorn). Just hold tray against ceiling for a couple of seconds (not too long, don't want to soak it) then remove and scrape using 5 inch scraper (being careful not to gouge softened ceiling). Put 2 layers of thin poly on floor - 1 to protect floor, 1 more to catch mess of popcorn. Also, if your house was built before 1978, recommend testing popcorn for asbestos (quick, cheap test).