Pete_Muller
Moderator
Methanol appears to evaporate pretty fast, and when exposed to air, it turns to water, aluminum corrodes in water, maybe that was the problem.
I don't believe that's the process. Methanol reacts with the aluminum oxide layer that forms naturally on aluminum, and that interaction creates some type of chemical that is corrosive to aluminum.
And methanol is "hygroscopic" (absorbs* water from its surroundings, such as air) -- it does not "turn into" water.
PM