How To Skim Coat A Ceiling For Beginners Tutorial. Learn how to skim coat ceilings for beginners tutorial with these skim coating tips and tricks! In this video I’ll be showing how to apply a skim coat to a painted popcorn ceiling. Smoothing out a ceiling with a skim coat makes sense in many different scenarios. Watch this entire video series to find out why! Let me know down below in the comments if you’re a contractor, painter, handyman/handywoman, DIYer or even a beginner? Thanks so much for