It's going to be hard to get it back to the new alum. look, trailer wash at the truck stops are going to turn it white, most of that stuff is acid, the closest thing i found to get back to natural finish is sos pads, but you got to rub in one direction, gets back to "almost" new looking alum, then i took it a step further and polished mine out... Re: best aluminum cleaner for boat trailer? shipshape tv had a segment awhile back using flitz metal polish and a flitz branded polishing thingy that attached to a cordless drill to clean up an aluminum trailer...came out pretty nice.. Hey guys i bought a used aluminum trailer that has been used primarily in the salt but has been taken care of pretty good.it has the 5 1/2" in aluminum i beams and are a little dull from being used for two or three years.it has that rough look..
Aluminum cleaner. aluminum cleaner removes oxidation, stains and discoloration from aluminum and metals.; quickly and easily clean the diamond plate on your boat or rv. aluminum cleaner for cleaning aluminum boats and pontoons.; also clean rims and running boards on trucks and vehicles.. This highly-recommended two-part application combo is our most effective aluminum cleaning solution. on its own—directly on painted surfaces— britewash is an outstanding washing detergent for cars, trucks, trailers and other painted equipment.. But to just wash away the aluminum oxide is to wash away part of your trailer. if the al is protected by some coating and the acid wash is just cleaning the coating then that's perfectly ok (assuming the intregrity of the coating)..