My friend bought a damaged Marblehead sailboat. He is not sailing it in competition, only as a fun R/C sailboat. He wants me to put a thin birch ply deck on it and make the repairs needed on the rudder post area.

Does anyone recognize the material used for the deck? See the golden brown coloured photos. The boat originally had an iron shrink material used on aircraft models.

After I know the material, then I can determine the adhesive to use for attaching the birch ply deck.

Thanks!