How to Remove Chalky White Film on Resin Chairs

Resin chairs are a common patio future. They are durable and easy to clean, which makes them a good choice for outdoor use. Unfortunately, resin chairs can become susceptible to mould. It is not uncommon to find chalky white film covering your resin chairs. This chalky white film is a form of mould, and it can be removed with relative ease.

Place the chairs on your lawn and spray them down with a garden hose. This will clean off any dust and knock off the loose dirt.

Mix 1 gallon of warm water, 3/4 cup of bleach and 1 tbsp of dishwashing liquid in a 5-gallon bucket or other large container.

Scrub the resin chairs with a sponge or soft bristle brush dipped in the mixture.

Let the mixture sit on the resin chairs for 15 minutes.

Rinse with fresh water. This can be done using the water hose or wet cloth.

Allow the chair to air dry.


Before using the bleach, water and dishwashing detergent, test in a small inconspicuous area for any discolouration. Clean your resin chairs on a warm, sunny day.


Using bleach on coloured resin chairs may cause discolouration. When working with bleach wear rubber gloves to prevent skin irritation.

Things You'll Need

  • Garden hose
  • Water
  • Bleach
  • Dishwashing detergent
  • 5-gallon bucket
  • Sponge
  • Soft bristle brush
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About the Author

Amanda Flanigan began writing professionally in 2007. Flanigan has written for various publications, including WV Living and American Craft Council, and has published several eBooks on craft and garden-related subjects. Flanigan completed two writing courses at Pierpont Community and Technical College.