How to Seal a Mahogany Deck


A mahogany deck can be a shining gem attached to your house, but after years of abuse from the sun, wind and rain, it may look ragged. Faded wood and water damage are common issues with decks. The proper deck sealant ensures that water is repelled and water damage is avoided. Properly seal your mahogany deck and restore it to its former glory.

Things You'll Need

  • Broom
  • Garden hose
  • Deck cleaner (sodium percarbonate based)
  • Water
  • Garden sprayer
  • Nylon bristle brush
  • Protective sheets
  • Mahogany deck sealant
  • Remove all furniture and objects from the deck.

  • Brush off debris with a broom.

  • Spray down the deck with a garden hose to wet it.

  • Cover any surrounding plants near the deck with protective sheets.

  • Combine commercial deck cleaner and water in the ratio described on the packaging instructions, then spray it evenly onto the deck's surface with a garden sprayer.

  • Rinse the cleaner off the deck with a garden hose after it has set for 15 minutes. Scrub any tough stains with a nylon brush. Allow the porch to dry for at least 48 hours before continuing.

  • Fill a clean garden sprayer with deck sealant intended specifically for use on mahogany wood.

  • Spray the sealant onto the deck in long, sweeping strokes. Allow it to dry for 24 hours, then apply a second coat. Wait at least 24 hours before returning furniture and using the deck.

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