Apply a thick layer of gel paint remover to the brick using a 4-inch bristle paintbrush. Gel paint remover sticks to the surface and breaks the bond between the paint and wall so that it can be peeled off.
Wait at least two hours and then check to see if the paint is ready to be peeled by pulling up a small section with a scraper. You may have to wait up to 18 hours for the paint remover to work sufficiently.
Pull the paint off in strips by lifting sections of it with the scraper and pulling it off. If it does not come off easily, you may have to wait longer for the paint remover to work.
Brush the surface of the brick with a wire brush to get rid of any debris or crumbling brick on the surface.
Rinse any residue off with a nylon scrub brush and plain water.