I don't like ACF50 or Corrosion X, both stop corrosion but stay wet and cause movement around rivets which then work loose and cause cracks, spray out a 212/412 tail boom with either and see how long before you have working rivets and a crack in your fin.
I like AV products , AV15 is super penetrating water displacement corrosion inhibitor which dries in a couple of days and you don't get working rivets etc thru the airframe.
AV-Dinitrol do a whole range of corrosion inhibitors, I've used LPS 3, ACF 50, Corrosion X and AV products and the AV leaves the rest for dead.
I'd sooner use none and just keep and airframe washed and clean and dry than use the wet corrosion inhibitors.