Rust-Oleum Chalkboard SeriesRust-Oleum Chalkboard converts surfaces into a usable chalkboard. Apply to metal, wood, masonry, drywall, plaster, glass, concrete, unglazed ceramics and hardboard. Erases cleanly.Indoor use onlyCleans with soap and waterFor 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