For teak indoors, use Osmo TopOil on tables, furniture and bathroom vanities and Osmo Hardwax-Olie Original on floors. Teak naturally contains a lot of oil, and an oil-based finish works with it without sealing the wood.
Which finish for which teak surface
Treat a teak table or sideboard with TopOil: food-safe, resistant to coffee, wine and water, and easy to touch up locally. Apply TopOil to teak by buffing, in thin coats with a pad or lint-free cloth, so the oil-rich wood absorbs the oil well. A teak bathroom vanity is finished the same way. A teak floor gets two thin coats of Hardwax-Olie Original.
Oil-rich wood absorbs less
Because of its natural oil, teak absorbs a finish less readily than other wood species. So apply thin coats and buff away excess oil after a few minutes. A coat that is too thick dries poorly and stays tacky. Always test first on an inconspicuous spot, especially on old or previously treated teak.
Keeping the colour
Teak is golden brown and, indoors, becomes somewhat darker and warmer under the influence of light. A clear oil lets that colour develop gradually. On this dark wood, choose 3028 satin matt for TopOil, or 3065 semi-matt and 3032 satin matt for Hardwax-Olie Original. A fully matt oil can leave a white bloom on dark surfaces. You can find more background in treating teak.
Maintaining oiled teak
Keep tables and furniture clean with the Spray-Cleaner and mop a floor with Wisch-Fix. If your teak is outdoors, such as a garden set, see teak outdoors, as it needs protection against UV and greying there.