Tung oil is the favorite finish of boat builders to protect their teak decks. It penetrates wood fibers and results in a deep, lustrous finish that brings out the grain and character of the wood.

Boiled linseed oil tends to darken wood even more. Linseed oil is mixed with the turpentine to increase penetration of the finish into the wood. So much for the patina of aged teak.

Identify your wood The more porous the wood, the tougher your job will be. A ring-porous hardwood such as oak will take the oil, but you won't get any shine. The oil is absorbed too deep. You'll ...