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How to Waterproof Teak

Don Kress

Outdoor furniture or flooring constructed of teak requires periodic care and maintenance to prevent the wood from absorbing water and to allow it to retain its dark, rich luster. Teak left untreated outdoors will eventually fade to a light gray shade and will crack over time even though it is naturally water-resistant.

Teak must be cared for to prevent discoloration and water damage.

Tip

If you are protecting aged teak that has faded to gray and want to revitalize the wood's color, sand the surface of the teak lightly with sandpaper and then use a natural teak stain with polyurethane sealer on top of the stain.

Warning

Avoid applying polyurethane sealer indoors if possible. Use only outdoors or in a well-ventilated area.

  1. Wipe off the wood with the clean rag to ensure that its surface is completely clean and free of dirt or debris.

  2. Paint the wood with the polyurethane sealer, using long, smooth brushstrokes. Concentrate on coating only one section of wood at a time to prevent the sealer from drying before you have a chance to wipe it off. Allowing the polyurethane sealer to dry will leave a heavy coat of glossy material on the wood.

  3. Wipe the excess sealer off of the wood when you have coated one section. This prevents excessive buildup of polyurethane on the surface of the wood, while still allowing sealant to protect the teak by remaining in the pores. Only one coat of polyurethane is necessary.

The Drip Cap

  • Outdoor furniture or flooring constructed of teak requires periodic care and maintenance to prevent the wood from absorbing water and to allow it to retain its dark, rich luster.
  • This prevents excessive buildup of polyurethane on the surface of the wood, while still allowing sealant to protect the teak by remaining in the pores.