I would say after the paint is off an aluminum frame, don't do abrasives - if you don't want it polished, just bare, then follow the advice on this Black Mountain Cycles page here as recommended by Charlie Cunningham:
https://blackmtncycles.com/care-for-...luminum-frame/
It works, as even if you don't have any corrosion to worry about, it will prevent it. The Fluid Film smells like a sheep, but it's worth it!
Yeah, I know, mismatched wheels...