How to Repair Wood Rot With Epoxy


Rotted and damaged wood can be repaired with a two-part epoxy filler. The main purpose of the epoxy filler is to fill in the rotted area. The two-part epoxy filler is designed to form and harden to the wood. The two-part epoxy filler is made up of wood filler and a hardener. When the two parts are mixed, they become one wood filler that will harden within minutes of applying the epoxy filler to the wood.

Things You'll Need

  • Wood file
  • 400-grit sandpaper
  • Clean rag
  • Two-part wood epoxy filler
  • Plastic scraper
  • Remove as much of the rotted area of wood with your fingers as possible.

  • File the rotted area of wood down with the wood file. Be sure to file as much of the rotted wood away as possible.

  • Sand the remaining area of wood with the 400-grit sandpaper until the rotted area of wood is smooth and free of rot. Then, wipe away the excess wood and debris with a clean rag.

  • Mix the two-part epoxy filler as directed by the instructions on the package.

  • Apply the two-part epoxy filler to the clean area of wood with the plastic scraper. Be sure to apply the epoxy filler to all areas of the damaged wood. Form the epoxy to the wood with the plastic scraper.

  • Wait at least 30 minutes for the epoxy filler to start to harden. Then, use the wood file to shape the wood in the form that it should look like.

  • Sand the hardened epoxy filler with the 400-grit sandpaper until the epoxy filler has a smooth finish. Wipe away the excess epoxy filler with a clean rag.

Tips & Warnings

  • You can buy two-part epoxy filler at most hardware stores.
  • Wear safety glasses when sanding wood.

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