A painted floor ( epoxy, urethane or acrylics ) is just that ........a painted floor. Painted floors are great if you want a show room but a disaster if you do metal, fiberglass or paint work in your shop, so have a clean room with a beautiful waxed painted floor for parking toys and plain polished concrete in the shop/ garage side that can be dust mopped or scraped to remove epoxy/polyester resin or what ever else falls on it. The more cars you build the more parking spaces you have to paint. Eventually you have to build another garage.
We built a 12 car garage to start with. By the time you move in 2 lathes, milling machine, shears, break, storage racks, metal cabinets, two benders, tig, mig, acetylene, 2 plastic, plasma, roller tool box, two poster lift, various belt/disk sanders, sink, hot water tank, big screen tv, surround sound speakers, Refrig, microwave, coffee pot, uranyl, pressure washers, 20ton, press inside and outside sand blasters, parts polisher, hundreds of small tools, 2 drill presses, welding table and assorted work tables. It is now down to a 6 car garage, so we built a 2 car down draft paint booth to park 2 cars in when not painting. After typing this i realized this car thing has really gotten out of hand. Damn I may go back needle point.
Gale