
Plastic outdoor chairs are a popular choice for many, given that they are stylish, lightweight, affordable, and often made from recycled plastic. However, they can get dirty quickly and are susceptible to mould and mildew. To clean plastic outdoor chairs, you can use a variety of household products, including vinegar, baking soda, dish soap, and oxygen bleach. It is important to avoid abrasive cleaners and harsh scrubbing pads, as these can scratch the plastic surface and allow dirt to accumulate. After cleaning, you can apply a thin coat of automotive paste wax to protect the chairs and make them easier to clean in the future.
| Characteristics | Values |
|---|---|
| Frequency | Regular cleaning is required to prevent mould and mildew |
| Materials | Lukewarm water, neutral soap or mild detergent, soft-bristled brush or sponge, microfibre cloth, baking soda, white vinegar, bleach, rubber gloves, carnauba wax, automotive paste wax |
| Process | Clear the area, wipe off dust and dirt, prepare cleaning mixture, gently scrub in a circular motion, rinse with water, dry in the sun or with a cloth, apply wax |
| Precautions | Avoid abrasive cleaners, do not scrub too hard, do not mix ammonia and bleach |
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What You'll Learn

Use a mixture of vinegar and water
If your plastic outdoor chairs are white, a mixture of 25% water and 75% distilled white vinegar can be used to clean them. Apply this solution to the mildewed areas and wait about 10 minutes before doing a general cleaning. You can either spray the vinegar directly onto the chair and scrub or put the mixture in a bucket and dip your brush into it before scrubbing.
The acidity of vinegar helps break down and remove stains from the plastic surface. Rinse the chairs thoroughly with clean water to remove any residual vinegar.
If your chairs are still dingy and stained after rinsing, an oxygen-based bleach solution can be used. Combine one gallon of lukewarm water with half to one cup of powdered oxygen bleach in a bucket. This solution is a gentle bleaching agent that removes stains and brightens plastics. It is also less corrosive and damaging to plastics than chlorine bleach.
Once your chairs are clean, you can keep them that way for longer by applying a thin coat of automotive paste wax. Use a dry soft cloth or sponge to spread the wax over the chairs and then buff with a dry cloth. The wax helps stains and dirt to slide off the plastic.
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Apply baking soda to a brush and scrub
Baking soda is a great option for removing stubborn stains from plastic outdoor chairs. It can also be used to clean yellowed plastic. To use baking soda to clean your plastic outdoor chairs, follow these steps:
- Prepare the area: Ensure you have enough space to work and move around the chairs.
- Mix a cleaning solution: In a bucket, mix one gallon of lukewarm water with half a cup of baking soda. Stir the solution well to ensure the baking soda is fully dissolved.
- Apply the solution to the brush: Take a soft-bristled brush and dip it into the baking soda solution. You want the brush to be coated but not dripping. Alternatively, sprinkle some baking soda directly onto the brush.
- Scrub the chairs: Using the brush, gently scrub the chairs, paying extra attention to stained areas. Work from the top down to catch any drips of dirty water.
- Rinse the chairs: After scrubbing, rinse the chairs with clean water to remove any remaining dirt or cleaning solution. You can use a garden hose or a bucket of clean water for this step.
- Dry the chairs: Once rinsed, dry the chairs with a microfiber towel or leave them in the sun to air-dry.
By following these steps and applying baking soda to a brush for scrubbing, you can effectively clean and remove stains from your plastic outdoor chairs.
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Use a mild detergent
To wash plastic outdoor chairs, you can use a mild detergent. First, prepare the cleaning mixture by filling a container with lukewarm water and adding a mild detergent. It is important that the cleaning liquid does not contain abrasives that could damage the plastic. Next, apply the cleaning solution gently to the entire surface of the chair using a soft-bristled brush or sponge. Use gentle circular motions to scrub away any dirt or stains. After scrubbing, thoroughly rinse the chairs with clean water to remove all soap residue. You can use a bowl or a hose for this step. Finally, let the chairs air dry in a sunny spot, placing them on an incline so that any remaining water drips down. If you are in a hurry, you can also use a cloth to speed up the drying process.
If your chairs are white, you can use a mixture of vinegar and water to remove tough stains. Combine a quarter cup of vinegar with a bucket of hot water and use a soft-bristled brush to scrub away any dirt or stains. Rinse the chairs with fresh water afterward and allow them to dry outside. You can also use oxygen-based bleach solutions to remove stains from white plastic chairs. Always test bleach solutions on a small area first to ensure they do not discolour the plastic.
For stubborn stains, you can also try using baking soda. Sprinkle some baking soda onto a damp sponge or brush and scrub the affected areas. Then, rinse off the baking soda residue with clean water. Alternatively, you can make a solution by mixing baking soda with warm water and using a sponge to wipe down the chairs.
Remember to avoid using abrasive cleaners or harsh scrubbing pads as these can scratch the plastic surface and make the chairs more susceptible to grime buildup. Gentle cleaning solutions and soft-bristled brushes are best for maintaining the integrity of your plastic outdoor chairs.
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Rinse with water
Rinsing your plastic outdoor chairs with water is an important step in the cleaning process. It helps to remove any soap residue that may be left over from the cleaning mixture you applied earlier. You can use either a bowl or a hose to rinse off the chairs.
If you used a cleaning mixture that involved baking soda, it is important to rinse off the baking soda residue with clean water. This will ensure that your chairs are left looking clean and fresh.
Rinsing with water is also useful if you are dealing with tough stains. In this case, you can use a mixture of vinegar and water, and then rinse the chairs with fresh water. This will help to remove any remaining dirt or grime.
After rinsing, it is recommended to let the chairs dry in the sun. You can place them on an incline so that any remaining water drips downwards. If you are in a hurry, you can also use a cloth to dry the chairs more quickly.
Rinsing your plastic outdoor chairs with water is an effective way to remove soap residue, baking soda residue, and any remaining dirt or grime. It is a crucial step in the cleaning process to ensure your chairs are thoroughly cleaned and dried.
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Bleach for white chairs
Bleach is a recommended method for cleaning heavily soiled white plastic chairs. It can also be used to restore shine to white chairs that have taken on a yellowish hue over time.
When using bleach, it is important to protect your hands with gloves and wear old clothes in case of accidental spills. It is also vital to spot-test the bleach solution before applying it to the entire chair. Bleach can cause yellowing on white plastic if left on for more than 10 minutes, so it should never be applied directly to white plastic chairs. To use bleach on white plastic chairs, mix one part bleach with four parts water in a container and apply the solution to the affected areas. Leave it to act for a few minutes, then rinse the chair with plenty of water and dry it with a cloth or in the sun.
If you are looking to remove mildew from your white plastic chairs, a solution of 25% water and 75% distilled white vinegar can be applied before general cleaning. For general cleaning, a solution of lukewarm water and dish soap can be used, with baking soda added for extra cleaning power.
To keep your white plastic chairs looking clean for longer, apply a thin coat of automotive paste wax after cleaning. This will help stains and dirt to slide off the plastic more easily.
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Frequently asked questions
A simple way to clean plastic outdoor chairs is to use vinegar. You can either spray the furniture with vinegar and then scrub, or put the vinegar in a bucket and use a brush to scrub the chair. Then, use a hose, a bucket of water, or a watering can to rinse the chair.
Regular dusting and wiping with a wet cloth can help keep plastic chairs clean. If the chairs are not going to be used for a while, cover them with a cloth or a fabric cover.
There are various products available in the market for cleaning plastic outdoor chairs. You could use plastic rejuvenators, interior cleaners, or mild abrasive household cleaners. You could also use a mixture of water and distilled white vinegar to clean mildew.











































