The Cerakote H Series is probably the most common coating available. It isn’t as tough as the Elite series during lab tests, but it will still fight against corrosion and chemicals better than other available coatings, and it’s so popular that you can get the protection you need in almost any color imaginable, even gold. The H series is also a bake-on application, so no melting plastic pieces.
In general, if you are trying to add a little flair, or totally customize your 1911, the H series is perfect for your project. The upshot over most other decorative mediums, of course, is that you are adding on of the toughest layers of protection along with the color. There’s a reason it’s so popular. Fit and finish on internal pieces will require some extra attention, as the 1 mil thickness of the layer is enough to tighten tolerances on moving parts. The H Series works well on everything from dive watches, to fishing gear, to firearms. On parts where it’s possible, multiple layers can be added to handle wear better over time.