How effective is graffiti remover?

Graffiti remover uses a particular blend of solvents that works on some types of graffiti. It doesn’t work on all types, and it’s most effective when used rapidly after graffiti appears. Once paint and other materials cure, graffiti remover is unlikely to be effective. Although graffiti remover is less likely to damage cured paint, you should still test it in a small out-of-the-way area before using it on the main part of your wall.