
Plastic Adirondack chairs are a great, low-maintenance option for outdoor furniture. They are made from recycled plastic, such as water bottle caps, and are designed to look like real wood. However, if left outside, they can become damaged, faded, or cracked. To restore them, you can try cleaning them with a mixture of mild soap and water, or distilled white vinegar, and scrubbing them with a soft-bristle brush. If the chairs are wobbly, you can try anchoring them with glue adhesive and screws. For sun damage, you can try using a clear coat or UV protectant, such as 303 Aerospace Protectant, to prevent further fading or cracking. If the chair is made of ABS plastic, you can weld it using pure acetone.
How to restore plastic Adirondack chairs
| Characteristics | Values |
|---|---|
| Cleaning | Use a solution of mild soap and water, and gently scrub the chair to remove any dirt or grime. |
| Alternatively, use a mixture of distilled white vinegar, water, and a soft-bristle brush to scrub the chair. | |
| For very dirty chairs, a power washer can be used, but not exceeding 1,500 psi to avoid damaging the structure. | |
| Protection | Apply a UV protectant, such as 303 Aerospace Protectant, to prevent fading or cracking. |
| Repairs | For broken or cracked chairs, use epoxy or Gorilla Glue to mend the pieces together. |
| For ABS plastic chairs, "weld" using pure acetone. | |
| For chairs with small splits, drill a small hole on either side of the split and use a nylon wire tie to hold the pieces together. | |
| Painting | Use a primer and paint designed for outdoor use, allowing for the manufacturer's recommended drying time. |
| Maintenance | Keep the chairs stored away or covered when not in use to protect them from the elements. |
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What You'll Learn

Clean with mild soap and water
To restore plastic Adirondack chairs, cleaning them with mild soap and water is an effective method. This is a simple process that will help remove any dirt or grime accumulated on the chairs from being outside.
First, prepare a mixture of mild soap and warm water. You can use a mild dish soap for this purpose. Dip a soft-bristle brush into the mixture and gently scrub the chairs with it. Pay close attention to any crevices or grooves, as dirt and grime tend to accumulate in these areas. If your chairs are heavily soiled or have mildew, you may want to use a specialised plastic cleaner or add a small amount of bleach to the mixture (one part bleach to two parts water).
After scrubbing, thoroughly rinse the chairs with clean water to remove any soap residue. You can either wipe down the chairs with a clean, dry, lint-free cloth or let them air-dry. The benefit of plastic Adirondack chairs is that any lingering moisture will not damage the chairs.
If you want to expedite the cleaning process, you can use a power washer, but be cautious not to exceed 1,500 psi to avoid damaging the structure of the chairs.
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Protect from UV damage
Protecting your plastic Adirondack chairs from UV damage is essential to maintaining their appearance and prolonging their lifespan. Here are some ways to achieve that:
Choose Recycled Plastic Chairs
When purchasing Adirondack chairs, opt for those made from recycled plastic. Recycled plastic chairs are often treated with UV protection during manufacturing, which helps prevent colour fading. This makes them more resilient to UV damage compared to other materials like wood, which can be more susceptible to rot and water damage.
Apply Protective Coatings
If your plastic chairs are not already UV-protected, you can apply a clear coat or protective finish to shield them from UV rays. One recommended product is 303 Aerospace Protectant, which can be purchased from auto parts stores. This product helps prevent plastic from fading or cracking due to sun exposure. However, keep in mind that it may not restore already faded plastic.
Store or Cover the Chairs
Another way to shield your plastic Adirondack chairs from UV damage is to keep them stored away or covered when not in use. This simple measure will protect the chairs from prolonged exposure to the sun's rays and other elements. If storing them away is not an option, consider using furniture covers designed to protect against UV rays.
Regular Cleaning and Maintenance
Regular cleaning and maintenance of your plastic Adirondack chairs can also contribute to their longevity. Mild soap and water can be used to gently scrub away any dirt or grime that has accumulated on the chairs. Additionally, you can use a soft-bristle brush to remove any loose dirt or debris. Ensure that you rinse the chairs thoroughly and let them air dry completely after cleaning.
Repair and Refurbish
If your plastic Adirondack chairs have already sustained UV damage, such as cracking or splitting, there are repair methods you can explore. Depending on the type of plastic, you may be able to weld the chairs using pure acetone or a soldering iron. Alternatively, you can use nylon wire ties to hold splits together. For more extensive repairs, you may need to use epoxy or glue, but be aware that these methods may not be as effective in the long term.
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Use plastic welding with heat
Plastic Adirondack chairs can be repaired using plastic welding with heat. This method is most suitable for chairs made of ABS plastic, a very common type of plastic.
To begin the repair process, inspect the chair thoroughly to identify all the cracks and damaged areas that need to be addressed. Clean the chair with mild soap and water to remove any dirt or grime accumulated from outdoor use. Ensure that you gently scrub and wipe down the chair, allowing it to air dry afterward.
Once the chair is clean and dry, you can start the plastic welding process. This involves using a heat source, such as a soldering iron or a heat gun, to melt the plastic at the damaged areas. It is important to be cautious and wear protective gear during this step to avoid any injuries or accidents. Apply heat evenly to the cracks, ensuring that the plastic is melted sufficiently for the weld to take effect.
If your chair is reinforced with fibres, be mindful that the welding process can only be performed a limited number of times before the plastic starts to become brittle. The heat from welding helps restore the plastic by bringing plasticizer molecules back to the surface, replacing those damaged by UV exposure.
After welding, it is crucial to protect the repaired areas from further UV damage. You can do this by applying a clear coat or using a product like 303 Aerospace Protectant, available at auto parts stores, to shield the plastic from fading or cracking.
By following these steps, you can effectively restore your plastic Adirondack chairs using plastic welding with heat. Remember to exercise caution when working with heat, and always ensure proper ventilation during the process.
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Use Gorilla Glue
While some sources suggest that Gorilla Glue can be used to repair plastic Adirondack chairs, others claim that it does not work. One source mentions that Gorilla Glue worked for them when Crazy Glue did not. They also mention that it is faster, less messy, and requires less work than epoxy.
Gorilla Glue is available in clear gel form, and it is recommended to let it cure for a couple of days. You can use blue painter's tape to hold the glued parts together while the glue dries.
However, multiple sources claim that Gorilla Glue does not work for repairing plastic Adirondack chairs. One person tried using Gorilla Glue, along with other types of glue and duct tape, but none of them worked. They mention that the chairs eventually split and cracked.
Instead of using glue, some people suggest welding the plastic with a soldering iron or using "plastic welding with heat". Another option is to use epoxy, especially if the chair is made of ABS plastic, a common type of plastic. You can weld ABS plastic using pure acetone, and there are many examples of this technique on YouTube.
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Store away when not in use
Storing your plastic Adirondack chairs away when they are not in use is a great way to protect them from the elements and ensure they last longer. Here are some detailed tips to help you effectively store your chairs:
Firstly, it is important to choose a suitable storage location. Ideally, you will want to select a dry, covered area that is protected from the weather. This could be a shed, garage, or even a covered porch area. By storing your chairs in a covered space, you shield them from direct sunlight, rain, snow, and other harsh weather conditions that could cause fading, cracking, or other damage over time.
If you do not have a covered storage area available, consider investing in furniture covers. Furniture covers are designed to protect your chairs from the elements when they must be left outdoors. Look for covers made from breathable, water-resistant materials that can withstand different weather conditions. Ensure the covers fit snugly over your chairs to provide maximum protection.
When storing your plastic Adirondack chairs, it is best to stack them securely. Stacking chairs save space and helps prevent them from being knocked over by strong winds or accidental bumps. To stack your chairs safely, place the first chair on a flat surface and cover its seat with a soft cloth or blanket to avoid scratches. Then, carefully stack the next chair on top, ensuring the legs are aligned and the stack remains stable. Repeat this process until all the chairs are stacked.
Additionally, you can utilise storage solutions such as shelves or racks to keep your chairs off the ground and organised. These storage units provide a designated space for your chairs, helping to protect them from potential damage and making it easier to retrieve them when needed.
Finally, when storing your plastic Adirondack chairs, ensure the storage area is clean and free from potential hazards. Sweep or vacuum the area to remove any dirt, debris, or sharp objects that could scratch or damage the chairs. Keeping the storage area clean will help maintain the chairs' appearance and ensure they are ready for use whenever you need them.
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Frequently asked questions
You can use a clear coat or a product like 303 Aerospace Protectant to protect the plastic from UV damage and prevent fading or cracking.
You can clean plastic Adirondack chairs with mild soap and water. Gently scrub the chair to remove any dirt or grime, and then wipe it down or let it air dry. You can also use a power washer, but be sure not to exceed 1,500 psi.
If your chair is wobbly, you can try anchoring it with glue adhesive and screws. You can use products such as Gorilla Glue or duct tape.
If your chair is made of ABS plastic, you can weld it using pure acetone. You can also try using nylon wire ties (zip ties) to hold the split together.











































