[Buckeye30]

Cosmoline ( the heavy Petroleum/ grease compound) was replaced for deck deliveries in 1943 by Par-al-ketone a petroleum derivative useful for the Atlantic but hard to remove;
replaced in 1944 by a plastic coating called Plastiphane, easy to peel off. Transport on deck was much more economical than dis-assembling and crating.
I think the latter was also called Eronol. Crated aircraft parts were covered with plastic sheeting called Pliofilm.
P-47s on deck had props, tail assemblies and wing tips removed before Plastiphane applied.
Nick