Rust Brown is a deep, reddish tone that adds depth in FolkArts Carded Rust Finishes Kit. Pair with Red Rust to create an authentic rust look. Transform the look of your projects using these creative finish options. Add rustic, but contemporary, flair to your indoor or outdoor decor pieces with these easy to use, non-toxic paint finishes. Since they can be used on a variety of surfaces, including wood, metal, terra cotta, or plastic, the finish options are almost endless.