Yep, Pat is right just treat it like anything else. There is one more consideration with powder coating. Remember it is static electrically charged, so if you have two tubes closer than 1/4" you can have a problem with the powder covering in between the tubes, the positive negative thing starts happening and it actually pushes the powder away. Just don't be disappointed if you have any of these areas. You can fix them, again the benefits far out weigh the negatives in my opinion.
Ken