We suggest maintaining the exterior as you would a blued firearm to keep them in the best condition possible (although the coatings will resist fingerprints, Stop  Rusting etc Its best to take care of it to insure a fresh long lasting appearance) ! Cerakote notes that all cleaners made for firearms are safe for the surface. If you have a firearm completely refinished in Cerakote or Duracoat, a period of 200 to 300 rounds is typically required for break in with quality gun oil or grease. After this period you can run your weapon lightly lubricated!