My self I would just use a garden sprayer verity of concrete sealer. Local lumber yard should have it. Just make sure you blow or flood the dust off before you use any product. Wax or paint will get very slippery when wet. I used sealer because I’ve crashed in other friends shops with painted floors. Don’t even think about walking in with snow on your boots. My opinions But either way the concrete has to be CLEAN, dust free or you’ll experience pealing. Also if you seal the concrete you can’t paint it after with out grinding the sealer off. Hope this helps