How to Get Rid of Mildew on Canvas

Written by chris simon
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How to Get Rid of Mildew on Canvas
A canvas tent will attract mildew if stored when still damp. (Jupiterimages/Goodshoot/Getty Images)

Mildew will grow on canvas items, such as tents, deck chairs, wind breakers and boat sails, if they are packed away when still damp or in unventilated areas. Mildew produces living spores which must be eliminated to prevent further growth that will cause damage to the canvas. An inexpensive, nontoxic cleaning solution can be produced using household items that will not harm the canvas. Allow the canvas item to dry thoroughly outdoors before cleaning the mildew-affected areas.

Skill level:
Moderately Easy

Things you need

  • Cleaning bucket
  • White vinegar
  • Washing powder
  • Lemon juice
  • Soft-bristled brush

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  1. 1

    Mix 1 qt. of white vinegar and 1/2 tsp of washing powder with 5 qts. of warm water in a large cleaning bucket. Add a few squirts of lemon juice.

  2. 2

    Dip the soft-bristled brush into the bucket of cleaning solution and scrub the mildew-affected areas until the mildew is completely removed.

  3. 3

    Rinse the canvas thoroughly with copious amounts of clean, cold water.

  4. 4

    Allow the canvas to dry completely outdoors.

Tips and warnings

  • Clean the canvas items outdoors to prevent water splashes indoors.
  • Allow canvas items to dry thoroughly before storing to prevent further mildew growth.

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