I come across concrete sealers are Tremendous quick to apply. Just clean up the concrete, let it dry, then use the sealer which has a mop. It received’t change the shade from the concrete, but will darken it a little and insert some gloss. You’ll need to reapply it yearly https://mcgepoxycoatings.com/epoxy-vs-untreated-concrete-garage-flooring-which-one-is-best/