Choosing the Right Deck Finish - Fine Homebuilding19 Mar 2012 ... In some cases, you'll also see a complicated string of buzzwords, as on Behr's Premium Wood-Toned Weatherproofing Wood Finish or Olympic's Wood Protector Toner waterproofing sealant. Then, formulation aside ... Which deck finish is best? There's no easy answer. It would be nice to single out one type of deck finish as the best. Unfortunately, when it comes to preserving wood in such a torturous environment, there's no such thing as best. No matter which finish ...