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Hi there. Once the concrete resurfacer was dry I did do a light sanding job before I sealed it. I simply used a very corse sand paper and followed up with a fine grade sand paper sponge. The sand paper allowed to to rough up the chemical stain more plus add a smoother finish. Afterward I wiped it down with a wet sponge to clean. If you are applying the resurfacer evenly and smoothly the sanding process is pretty quick and easy. I don't know what products other people used or how they were applying but this was not a difficult application at all from start to finish.Hopefully that helped :)