Shop floor covering systems

A while back (6 months or so) I bought a couple of the "kits" from Home Depot, and if I remember right it was by Rust-Oleum (?).........

Prepped and painted, and sprinkled the colored chips as I went. Came out great.

The dilemma was that I really wanted the high gloss clear.....BUT, no one carried it anywhere around my location. NOW, after 6 months have passed, they have a boatload of the stuff.

My question is this.......... Can I successfully cover my existing floor, 6 months dry, with the clearcoat epoxy and get a decent adhesion? I can't very well sand the floor, or I'd have to repaint the whole thing.........

I'm wondering if a little "steel wool" to just lightly dull it, then a thorough prep-solvent wipe would do the trick..........??