paper or plastic?

[njsteve]

I don't know what material the plastic sheeting is but I had a bad experience years ago when a body shop covered the brand new convertible top on my Z11 with plastic sheet and then accidentally left a rag that had solvent residue on top of the plastic. The fumes permeated through through the plastic material and ruined the grain on the convertible top. The shop had to pay to replace the brand new top.

I imagine that the same thing would have happened if paper was used as well, but the plastic seemed to react violently with the solvent, turning into a goo that ate up the top.