Teak oil is applied to teak furniture and other teak surfaces to restore their natural colour. Teak oil also helps protect the teak wood and maintain the original golden-brown shade it had when it was new. Teak oil helps any outdoor teak surface resist the weathering, greying, and fading that naturally result from exposure to the elements.
Teak is an expensive tropical hardwood with a tight grain and plenty of natural resin. It is often used to build outdoor furniture, ships, and luxury yachts because of its extreme durability and weather-resistant qualities. Teak resists moisture, mould and mildew, and repels insects. Teak oil is not made from the teak tree, but from linseed oil and tung oil.
Teak wood has a golden-brown or honey-brown colour when it is new. If left outdoors, teak naturally weathers to a silvery-grey patina as it is exposed to the elements. If untreated, the silvery-grey will deteriorate to a dark grey or even a greenish colour over time. Teak oil is used to restore the wood to its original colour and protect it from further greying.
Teak oil should be applied about every three months to be most effective. It is easy to use. Teak oil is applied like a wood stain, using a brush or lint-free cloth. Teak oil should be applied to clean, dry furniture. Additional applications of teak oil will add more lustre to the wood. It takes about a day for each coat to dry. The oil penetrates deeply into the wood and brings out its grain.
Teak oil replenishes the natural oils of teak wood that diminish with exposure to the sun. Teak oil can also be used on other hardwoods, such as mahogany and rosewood. Many teak oils contain protection against ultraviolet rays. Teak oil can also be used on marine surfaces, as long as they are above the water line.
Teak is a naturally long-lived wood. Using teak oil on teak wood does not prolong teak furniture's life, it simply restores the wood to its original colour and brings out the grain. For best results, some manufacturers recommend that the grey patina at the surface of the teak wood be sanded off before applying teak oil.