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Resealing Aged Wood

Either through years exposed to the weather or intentional aging with acid or bleach, the surface of aged wood is not easy to recreate. Sealant is often used to maintain aged wood and protect it from damage of moisture, mold and mildew. When it comes time to reseal aged wood, the usual process of sanding down the current surface is not an option, as this will ruin its appearance. You must strip the current sealant as much as possible before applying a new coat.

Things You'll Need

  • Liquid wood sealant stripper
  • Rag
  • Polyurethane wood sealant
  • Paint pad
  • Tack rag

Instructions

    • 1

      Apply a wood sealant stripper per manufacturer's instructions to remove any current coating on the aged wood. This might take several applications; repeat the process until all of the current seal has lifted away.

    • 2

      Wipe down the stripped wood with a damp rag to remove any residue and allow it to dry for 12 to 48 hours. When the aged wood is dry, it should be similar to its original color. Depending on the method of aging, the wood will take a different amount of time to dry.

    • 3

      Apply a polyurethane wood sealant with a paint pad over the dry, stripped surface per manufacturer’s instructions. Allow the first layer to dry for 24 to 48 hours.

    • 4

      Wipe the sealed surface down with a tack rag to pick up dust and debris. Tack rags are soaked in resin and available at most hardware stores. Repeat the application, drying and wiping process twice more. The manufacturer’s instructions might specify to sand the surface lightly between coats. If this is the case, ensure you only sand the new sealant, not the aged wood surface, and do so before wiping with the tack rag.