Sand the surface of the brick fireplace using a sanding buffer with a medium-grain sanding ring. This removes sharp edges or chipping from the bricks.
Vacuum the surface of the bricks and the surrounding areas using a shop vacuum with a brush attachment.
Fill a paint tray with stone-colored latex paint, then coat a 3-inch-wide flat paintbrush with the latex paint. Select either cream or gray stone-colored paint.
Paint the surface of the brick fireplace, tapping the paintbrush into the creases and cracks as you paint. Allow the paint to dry for eight hours.
Apply two more coats of stone-colored latex paint in the same manner as before, allowing the paint to dry for eight hours between each coat.