I've got some old Scotia, or Simtac 1/300th scale heavy bombers that appear to be rusting.
There's a lot of surface oxidation on the upper and lower wing surfaces, as well as the fuselage.
Now, I don't really leave in what would be considered a terribly humid climate, and these were stored together in a sealed, plastic box, but out of their original plastic bag packaging.
Interestingly, several others that are in the same condition, inside the same box exhibit no such rust-like discoloration. The minis definitely didn't have this amount of oxidation on them when they were put into storage about 10 years ago.
So, I'm looking for a cure to the issue.
It appears to me that a thorough light sanding may be in order, followed by a thorough washing to get all of the dust residue off, and then let them dry overnight.
Followed up by a quick prime, within 24 hours, or so, to prevent future oxidation.
One of them is a Lancaster, which has already had the lower surfaces primed black. There doesn't appear to be any oxidation on the lower surfaces, as far as I can tell.
The other is a bare metal B-24, which is showing significantsigns of oxidation all over(looks like an old tin roof of a barn, left out in the weather, unpainted).
Do you think these steps will help cure the issue?
Any ideas on how to keep if from happening to other minis?
I presume these may have a bit more tin content that the ones direct from Scotia, resulting in the current situation.
