You are able to sand all over again (and thoroughly clean once more) just after priming If you'd like. Then it is best to apply 2 coats of paint. The cleanse-up is definitely the daunting aspect. We used plastic and tarps and did 2 rooms at once. In hindsight, I http://keeganeatjk.blogofoto.com/19669456/the-single-best-strategy-to-use-for-popcorn-ceiling-removal-tool-video