Tung oil once applied to a deck or other wood surface lasts for around 6 months before you have to and should reapply the tung oil again.
Pure Tung doesn't go bad but polymerized Tung oil has a specific shelf life.
So regardless of the version of Tung oil, you're using, you will need to schedule regular reapplication of Tung oil –say once every six months.
Tung oil is used as a finish to help protect wood. Woodworkers use it to create a hand-rubbed finish.
It is used on wood furniture, boat decks, flooring, unfinished wood, weathered wood, concrete floors, countertops, stone, bamboo, brick, cabinetry, musical instruments and wood toys.
Tung oil is a great finish for those looking for a close-to-the-grain look and the ability to feel the texture of the wood. In this case, a hard finish like a lacquer or varnish would be a poor choice.
It's also eco-friendly, food-safe, and non-toxic, and it won't turn yellow as it ages.
Tung oil creates a harder, more durable finish than linseed oil.
Tung oil is more water-resistant than linseed oil.
Raw linseed oil takes significantly longer to cure than pure tung oil.
Tung oil is generally more expensive than linseed oil.
You can put Tung oil over stain but only when the stain is completely dry.
You have to apply the Tung oil with a clean lint-free cloth.
Tung oil works on oil-based stains and water-based stains.
Tung oil or China wood oil is a drying oil obtained by pressing the seed from the nut of the tung tree.
The oil and its use are believed to have originated in ancient China and appear in the writings of Confucius from about 400 BC.