How to Finish Burl Wood

Written by patti perry
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How to Finish Burl Wood
Burl wood forms where an outcropping grows on a tree. (Ablestock.com/AbleStock.com/Getty Images)

Knotty burls have interesting colours and textures hidden inside of their gnarly exterior. They can be finished with urethane, if they are not to be used with food. This creates a glassy appearance and allows the fascinating patterns to shine through the varnish. Food grade finishes are needed for all containers that will hold fruit or other edible items. This finish needs to be reapplied after every few uses, to maintain the finish and keep the wood from drying out.

Skill level:
Moderate

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Things you need

  • Sanding dust
  • Epoxy
  • Sandpaper
  • Tung oil
  • Carnauba wax
  • Soft cloth

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Instructions

  1. 1

    Seal all crevices and pockets with sanding dust and epoxy glue. Mix the two components to make a filler and press into the splits and cracks.

  2. 2

    Sand the surface to smooth it.

  3. 3

    Finish with 100 per cent tung oil varnish. Tung oil is slow to cure and will appear wet as it dries.

  4. 4

    Polish with carnauba wax. Use a soft cloth to buff the surface.

Tips and warnings

  • Butcher block oil may also be used in place of tung oil.

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