Remove Mildew from Outdoor Wood

Keeping your deck beautiful requires occasional cleaning to remove mildew, mold and dirt.  Mildew and mold is a common problem on outdoor surfaces.  The green growth from mildew can become slippery and make the surface dangerous for walking on.   Wood can also become weaker if left with fungus and mildew for too long. 

Pet and kid safe outdoor deck cleaner

It is important to regularly remove mildew and mold from your deck to keep it looking its best and to preserve its long-lasting beauty.  WOCA Exterior Cleaner is non-toxic, so it can be used safely on your outdoor deck, patio furniture and other outdoor surfaces.  It safely and effectively removes mildew and mold, as well as helps to prolong resettlement.  Leaving your outdoor spaces clean and safe for the enjoyment of you and your family.  Unlike bleach or other harsh chemicals, you don't need to worry about harming your plants, trees or other surrounding vegetation when using WOCA Exterior Cleaner since it is non-toxic.

Step by step instructions for removing mildew with WOCA Exterior Cleaner

  1. Remove all loose foliage, branches, etc. and then soak the wood with water. Use a garden hose if possible. 
  2. Mix Exterior Wood Cleaner with water in a ratio of 1:2 - 1:10, depending on how dirty the wood is.
  3. Apply the cleaner in an even coat, using a brush or spray nozzle. Leave the cleaner to work for five minutes.
  4. Scrub the soaked wood lengthwise with the wood grain till the wood appears clean. Repeat the cleaning if necessary.
  5. Immediately after cleaning, hose down the surface with water.
  6. Clean tools with water.
  7. Leave the wood to dry for approx. 24 hours. The wood must be completely dry before applying an Woca Exterior Oil treatment. Remove fiber rising with sandpaper.

How to use WOCA Exterior Cleaner video


If you have any standard polishing machine, using our round mechanical Cleaning Brush will make the removal of mildew and mold that much faster and easier.  We also have a manual deck cleaning brush that can be attached to any standard pole to use for deep cleaning and scrubbing. 

After removing mildew and dirt from your deck, it is important to protect it from the harsh outdoor elements.    WOCA Exterior Oil is a deep penetrating oil that hardens inside the wood.  Leaving wood with a hard wearing surface and UV protection.  All while preserving the wood's natural beauty.  It is not film forming and fast drying, making it quick and easy to apply.  It also delays emergence of mold and fungus, keeping your deck beautiful and safe longer.

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