Finish: Each word is powder coated which gives them a durable, rugged finish that will hold up to outdoor elements including sun, rain, snow, and rust. Each powder coat offered is UV stable which helps prolong the finish and color of your word wall art. The unfinished option is sanded down to allow you to apply your own paint finish. If left unfinished and exposed to outdoor elements, the metal will rust which can be a desirable look to some!