There are scratch built ship models in my collection that are over 10 years old and I never saw any sign of crumpling. What do you intend to do with them? Store them in the bath room?I’m afraid to work with paper because it’s susceptible to moisture and the weaker structure could get easily crumpled.
What I do see in some of the kits I built (mainly planes and vehicles) is discoloring and damage by insects (silverfish). Peculiar enough they don't seem to like my ships, for which I thank them.



