About Chalkboard Brush-On Rust-Oleum® Specialty Chalk Board converts surfaces into a usable chalkboard. Apply to metal, wood, masonry, drywall, plaster, glass, concrete, unglazed ceramics and hardboard. Erases cleanly. Indoor use only Cleans with soap and water
For Best Results Allow paint to dry for 3 days. Once cured, prepare surface for chalk by rubbing side of chalk over entire surface and erasing.