DecoArt Americana Chalkboard Paint is a quick and easy way to turn a wide range of surfaces into chalkboards. Create fun and functional chalkboards in any room of your home with paint that is erasable, washable, and durable enough to stand up to lots of little hands. Use on wood, canvas, paper mache, terra cotta. This bottle will cover approximately 5 sq ft. Non-toxic, water based. 2 oz. Black Slate.