Thanks Brian for the great response.
I have this still bothering me. If you have epoxy totally cured: Do you have to sand it to put more epoxy on it or just sand before you put paint and sealers?
I thought that I read somewhere that you either have to sand the epoxy or spray another coat of epoxy on it (if it is totally cured) and then your good to go with sealers or base if you are within the new 7 day window.
I am only asking because the area I would do this are places like behind the dash or other tuff places to sand effectively.