New member from Iowa here, with a 1982 OMC Saildrive 25' centerboard O'Day that I am refitting. Does any of you know what finish the factory used on interior teak plywood? My boats plywood is in faily good shape with a bit of water stains down low from bilge water. I want to think factory used a tung oil hand rubbed from its look. I want to protect plywood with out a lot of work or time. It would be awesome and easy to apply a top coat of same finish if I only knew what it was the factory used way back in 1982! Thanks