If you should want to remove epoxy from a given area, it will probably be a difficult task. This stuff isn’t really meant to be removed, but it can still be done. You will definitely need a scraper, and you will definitely need to repaint any painted surfaces when you are done. As for solvents, acetone will usually do the job. Just wet the surface of the epoxy mass and give it about an hour to soften and dry.
After that, you can use a heat gun or propane torch to heat the epoxy until it turns into a goopy gel-like substance. At that point, you can just scrape it off. One little safety tip: Remember that acetone is highly flammable. Make sure that it’s all gone before you apply the torch. The good news is that acetone also evaporates quickly, so it shouldn’t take that long.