Mar 20, 2014· Joined Nov 7, 2012. ·. 2,290 Posts. Discussion Starter · #1 · Mar 17, 2014. Hi, Wanting to get my work done quicker, I started using Easy Sand 45 and 20 a few months ago, and I have a couple of questions for those that use it. 1) I think that it states on the bag (I do not have it with me right now) that it should not be used to skim coat.