ABSTRACT   Overboard discharges leave long, unsightly rust streaks down the sides of ship and these streaks are often painted over with virtually no surface preparation. It has been estimated that fleet-wide the Navy spends 306,000 man-days per year to paint over running rust increasing maintenance cost.  NSWCCD was tasked to investigate the feasibility and benefit of applying self-cleaning coating that would eliminate or mitigate this problem. Three new liquid anti-graffiti based coating systems, one thermal spray thermoplastic powder coating, two pressure sensitive tapes, Mil-PRF 24635D Haze Grey Topside (as the control) and the Mil-PRF 24635D with an addition of a chelating agent were selected as test candidates.  These coatings were applied over steel panels that were surface prepared to near white metal and 23236C epoxy primer applied.  Twelve panels were prepared for each coating system to be tested in an accelerated corrosion cabinet to run GM 9540 testing for a period up to four weeks (672 hours).  In the GM 9540 testing, the panels were subjected to corrosive wet and dry cycle, 8 hours each.  Every week, three panels for each coating system were removed and hand cleaned with a paper towel (dry and water wet) using simple vertical rubdown motion.  The panels were returned to the cabinet, to determine if the rubbing motions produced a surface with a greater affinity for rust stain accumulation.   Each week the returned set or sets and a new set was taken out of the cabinet and cleaned.  This was performed up to the fourth week until all of the panels were removed and cleaned.  The end results indicated that the control was the least cleanable of the eight samples tested. The promising candidates were the two pressure sensitive tapes and thermoplastic powder coating and further study should be conducted on actual Navy ship hulls before these findings are accepted.