aluminum fuselage oxidation moses

[grandeand]

hello guys,
I noticed these two oxidation points on the aluminum fuselage of my moses.
in October I had disassembled it as a mast because in winter I don't use it and it only had two very small white dots, which I cleaned.
how to intervene?

[airsail]

Looks like the fuselage has been scratched and now corrosion has started under the anodised surface.
Remove all corrosion products by mechanical means, eg sanding, file, grinding etc.
Apply a aluminium surface conditioner, it’s an acid that removes any remaining corrosion products, we use a product called WO1.
Apply a chemical conversion coating, another type of acid which provides a anodised finish, we use a product called Alodine 1200.
Prime the surface with a quality primer, we use a two part epoxy.
Top coat as required.
Now you probably won’t have access to the above chemicals as they are aviation specific, maybe a boat yard could help, but you might find alternates by googling. You could also sand blast the area prime and paint, not a permanent fix but will give you a couple of seasons then replace the fuselage.

[juanpasala]

Sand-Paint-Repeat after a couple months

[TomW]

I had some surface oxidation, then I just cleaned it well and applied turtle car wax. Never saw it again