On my basic shower floor in my basement, it was coated a few years back with an unknown epoxy of some sort. Over time it slowly flaked/peeled. I'm looking to get that old stuff removed so I can redo it. I need to know what chemical or tool to use to do this. I tried a 4.5" grinder with a wire wheel, and that made a mess and would take forever to do the job. I'm thinking about paint remover but haven't tried it yet. Anyone got a bullet proof plan for me so I can get my shower floor looking good again?!?!?