I need to fill cracks on my pre-cast concrete balcony -- I probably will be using quikcrete stuff like the pre-mixed concrete crack filler.
Before I do, my question is how to sand down the filler to smooth out the filled area with the balcony. Like repairing drywall, the area will be lumpy and require smoothing or sanding.
What tools & sandpaper are needed? a palm or belt sander, and is there specific masonry sand paper or just plain sandpaper??
Thanks for any advice ?