Can something be done offshore to eliminate rusting flanges, bolts and piping?
Trenton #2 tapes (brown, aluminum, white) with the standard brown or white primer can eliminate much if not all of these issues above the splash zone. Trenton #2 Wax Tape is UV protected; it hardens to the touch and can be painted after 2-3 weeks. The space between flanges should be filled with primer or Trenton hot wax and then make an outer wrap on the flange. Many customers also wrap the studs and nuts and thus protect the whole flange. Miscellaneous piping can be wrapped in the same manner with Primer and #2 Trenton Wax Tape.