I painted mine when I replaced the floor to protect it, still haven't gotten to the point of putting something over it as I continue working on it. It still looks pretty decent if you don't notice wear from heavy work going on in it and some marks from sealant drippings. Seams and floor hold down screws are visible.
I used porch and floor paint from Home Depot,
I thought of using the epoxy floor covering you can use on garage floors that they also had. It would probably hold up better than just paint.