efelker

ColoradoCop:

Be careful about aluminum guaranteeing no rust. You are right in that regard; however, there is a corrosion problem with exposed aluminum that is exposed to constant moisture and especially any salt. Aluminum does oxidize. Being in aircraft maintenance, I can tell you aluminum corrosion is the greatest challenge to aging aircraft. The corrosion appears as a white powery coating or dull gray surface, and weakens the strength.

So washing down well is necessary, even for aluminum.

Ed