See this url and scroll down to the third to last photo where the builder
lightly zinc-chromated his aluminum pieces.
http://www.flycorvair.com/601.html
Tom
"DL152279546231" wrote in message
...
I have been looking at Zenair's Ch 701 STOL and nowhere have I seen any
mention
of treating the inside of the sheet alluminum for corrosion protection. I
would
have thought spraypainting with green (zincoxide?) paint woudld have been
necessary