Tim Miller did ours 5 years ago, looks as good as the day he painted it. Had it done before we moved in. You can walk on it in a day, but will need to wait a few days before parking your vehicles. I had him paint the utility closet floor too. He also installed an aluminum ladder to the attic. I did not opt for the textured grip, mops up very well. Yea, its slippery when wet.
I've painted my garage floors in the last two houses, with unremarkable results. Glad I had someone do it professionally.
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