How to Make Borax Wood Preservatives

Written by alicia bodine Google
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How to Make Borax Wood Preservatives
Treat your wood with a borax preservative. (Jupiterimages/liquidlibrary/Getty Images)

Wood is often treated with chemical preservatives to extend its life. Unfortunately, you may not want to use wood treated with these chemicals when building something like a doghouse or a tree house for your kids. Borax, also known as sodium borate and sodium tetraborate, is an all-natural product you can use instead. Borax will even protect the wood from becoming infested with insects or from wood decaying fungi.

Skill level:
Moderately Easy

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Things you need

  • Tarp or plastic tablecloth
  • Pump sprayer
  • 284gr. borax
  • 177ml. boric acid
  • 1 gallon hot water

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Instructions

  1. 1

    Prepare your workspace area by laying down a large tarp or plastic tablecloth. You should be making and using your borax wood preservative outdoors.

  2. 2

    Measure out 295ml. of borax and 177ml. of boric acid and place them inside a pump sprayer.

  3. 3

    Pour 1 quart of hot water over the borax and boric acid powders. Stir until the powder dissolves in the hot water.

  4. 4

    Add more hot water until the water level reaches 1 gallon in your pump sprayer. Mix again until completely combined.

  5. 5

    Spray the wood with your homemade borax wood preservative. One gallon of this solution will cover 200 square feet of surface area.

Tips and warnings

  • Use up all of your borax wood preservative. You will need to make a fresh batch each time you plan on treating your wood.
  • Borax is toxic to plants. Do not prepare and apply the borax near any flower or vegetable gardens.

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