Will my sign require any maintenance to keep its original color and surface?

We complete all plaques with multiple coats of a quality, marine grade finish. (See the preceding two questions for additional insight.) You should expect some changes, especially with the Verdi and Iron Rust finishes. Although it is not necessary, and not recommended by Atlas, you can apply a quality wax finish periodically. If you do, you are on your own and need be careful with the amount so you don’t get a buildup in the corners, use only soft application and polishing brushes/cloths, and take care not to knock the plaque off the wall.