How to Remove Spray Paint from Concrete
Whether it was vandalism that made the spray marks appear on the concrete sidewalk, or it was some kid's experimentation with an old bottle of spray paint, or a slip on your side--the point is, those spray marks have been etched there, and they won't go unless you do something to remove them. The things that you will do, and the steps that you can take to remove the spray paint from a concrete surface have been listed below.
1. With Water and a Brush
Check if the paint is temporary or permanent.
If it is temporary, then it won't be as difficult to get rid of the stain.
Simply spray water from a hose pipe that is set on high pressure and then use a plastic brush t