As far as epoxy systems go, a primer coat, 100% solids base coat plus optional color flakes, and a coat or two of polyurethane for a clear top coat is great, long lasting system.
You can find more information about grinding from
this post here as well as get more info about epoxy systems and application.
Also, if you spend some time here with the search function you will have a lot of your questions answered. Doing this will allow you to get a better idea of what you think you want to do. Good luck!
