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Dissimilar metal corrosion: avionics tray?

Steve Crewdog

Well Known Member
Patron
One of my local experts says I can't use nutplates on my 4043 aluminum avionics tray without powder coating it or I'm going to get dissimilar metal corrosion between the nutplates/cherrymax rivets/4043. Other areas of the SeaRey have nutplates riveted to the aluminum frame (6061T) with cherrymax rivets, so under his logic the build is already flawed in design.


Thoughts?


TIA
 
Last edited:
You need an electrolyte for galvanic corrosion. I.e., dirty or salty water. If dry, you should have no problem.
 
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