Warning: Teak furniture manufacturers strongly recommend avoiding oil of outdoor furniture or furniture that is kept in damp environments. This is due to the increased chance of mildew brought on by creating an environment likely to promote the growth of mold colonies.
Warning: Dry the furniture after cleaning and leave it for 24–36 hours to remove all moisture before applying the oil. Even if the surface moisture has dried, moisture just below the surface could be trapped by the oil, altering color and longevity. [5] X Research source
During the initial weathering, your teak furniture may look uneven in color or slightly cracked. This should even out over time.
One part teak cleaner is safe and easy to apply. Scrub it in with a soft-bristled brush, for approximately 15 minutes. Gently rinse with clean water, using an abrasive cleaning pad or bronze wool to open up the pores of the wood and remove the cleaner. Avoid steel wool, which may discolor the teak. Two part teak cleaners are harsher on your teak’s lifespan and texture, but operate faster and may dissolve tough grime. Apply the first part, an acid, and wait according to the instructions on the packaging. Scrub in the second part, which neutralizes the acid, making sure to cover the furniture thoroughly.
The use of a sealant and oil at the same time is controversial, as some believe them to have negative effects in combination. Some cleaning product manufacturers, however, recommend both.