"Corrosion on aircraft is nothing more than rust of the metal parts, although aluminum corrosion doesn’t produce the reddish color most people think of as rust. Rather, it usually first shows as a whitish or gray “dulling” of the aluminum surface, then progresses to more and more severe pitting and eventual destruction of the metal. Left untreated, corrosion can make an aircraft unairworthy in just a few years."
A major contributing factor to aircraft corrosion is the climate. Aircraft that operate in marine climates are particularly susceptible to metal corrosion. The most important means for preventing corrosion is to keep aircraft free of moisture. Strikehold is an industrial-grade protectant and lubricant it helps seal the metal against moisture and should be periodically applied to aircraft.