I stumbled across "nylon taffeta" while out *shopping with the Missus (you's gotta do what you's gotta do! LOL!!). The stuff is ultra thin, ultra flexible, and ultra strong. plus it will be around for millenniums after we are gone!
(I don't think nylon ever disintegrates)
I apply it with my nitrate dope before I cover the surfaces with silkspan or silk and it will disappear during the finishing phase. Just a few bucks a yard at the Fabric Store.
Big Bear