One way is to use a power washer with detergent.
Can you get spray paint off of concrete. Give the concrete surface a deep cleaning and allow it to dry. Scrub with a firm bristle. Rinse the area well with soapy water to remove any remaining paint remover.
To get spray paint off concrete surfaces, you need a power washer that is capable of 2,000 to 3,000 psi. So, it would be best if you went back. It is essential to do this as if you leave paint stripper on your concrete;
How to remove paint from concrete. Set the garden hose to high pressure and rinse the area thoroughly. The process to remove spray paint from concrete surfaces using soap and water is very straightforward:
Go over the area with a sprayer full of hot water. Another way is to use a chemical stripper. Drag a paint scraper across the paint stain to remove the top layer, then apply a paint stripper chemical.
Some small models, like this one,. Will nail polish remover get spray paint off concrete? Scrub with a firm bristle or wire brush.
If nothing else works well, you can. Soak the paint stains with your paint stripper and apply them several. Give the paint stripper some time to set.