Alexei Volkov
Sun-faded plastic is a common issue, especially in cars, where exterior plastic surfaces are susceptible to the sun's UV rays, causing them to lose their vibrant colour and turn grey and dull. There are several ways to restore sun-faded plastic and make it look as good as new. This includes using commercial plastic conditioning products, trim restoration products, heat guns, and DIY solutions like hydrogen peroxide, painting, and sanding. Keeping plastic out of direct sunlight and treating it with protective products can also help prevent sun damage and fading.
Characteristics and Values Table
| Characteristics | Values |
|---|---|
| Cause of sun-faded plastic | Exposure to sun's UV rays, extreme temperatures, harsh winds, dust, and other elements |
| Prevention | Park out of the sun, avoid car wax, use commercial plastic conditioning products, or apply trim restoration products |
| Restoration methods | Wash with soap and water, sand, prime, and paint; use hydrogen peroxide; apply boiled linseed oil and paint thinner; use trim restoration products |
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What You'll Learn
Use a trim restoration product
Sun-faded plastic can be renewed by using a trim restoration product. This method is a quick, cost-effective, and easy process to improve the appearance of sun-faded plastic.
Before applying the trim restoration product, it is important to clean the plastic surface. This can be done by washing the plastic with car wash soap and water to remove any dirt, dust, or other impurities. Alternatively, you can use a wax remover or a 90%+ alcohol solution applied to a shop rag or cloth to clean the surface. Ensure that you protect the surfaces that are not being restored by taping around the trim or removing it completely.
Once the surface is clean and dry, you can apply the trim restoration product. These products typically have a gel or cream consistency, so it is recommended to use a foam applicator, microfiber cloth, or microfiber sponge to apply the product evenly to the plastic. Some products may also come with their own applicator pad. It is important to follow the instructions on the product packaging and to wear protective gloves to avoid staining your hands.
Apply the trim restoration product in a back-and-forth, overlapping motion to ensure even coverage. You can add multiple layers, depending on the desired level of shine, ranging from a natural matte look to a high-gloss finish. These products not only restore the shine, colour, and appearance of plastic but also provide an extra layer of protection from future fading caused by UV rays, rain, and snow.
Some recommended trim restoration products include Turtle Wax, Solution Finish Trim Restorer, TriNova Plastic & Trim Restorer, and IGL Ecocoat Trim. These products offer excellent short-term results, with a single application lasting several months to a year, depending on the quality of the product and environmental conditions. For a more durable solution, consider using a ceramic-based plastic restorer, which offers enhanced longevity and resistance to UV and water damage.
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Apply boiled linseed oil and paint thinner
Renewing sun-faded plastic can be done using a 50/50 mixture of boiled linseed oil and paint thinner. This mixture will restore the vibrancy of the plastic and add a layer of protection.
To begin, you will need rubber gloves, two towels, a bowl, and a container to mix the oil and thinner. It is important to note that both substances are highly flammable, so caution should be exercised during the application process.
In a well-ventilated area, mix equal parts boiled linseed oil and paint thinner in the container. Swirl the mixture gently to combine the two liquids. Dip a small part of one towel into the mixture and apply it to the plastic surface. Use firm pressure and pay close attention to areas that are severely discoloured.
After application, use the second towel to wipe away any excess product. The boiled linseed oil and paint thinner combination will help improve drying time. While this solution provides a layer of protection, it is not UV-proof, so it will need to be reapplied over time, depending on the exposure of the plastic to the sun.
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Treat with hydrogen peroxide
If your plastic has turned yellow or brown, it was likely made with bromine, which acts as a flame retardant. When exposed to UV light, the bromine molecules destabilize and cause the plastic to change colour. Hydrogen peroxide can help remove these free bromides, restoring the original white colour.
To treat sun-faded plastic with hydrogen peroxide, you will need a 12% hydrogen peroxide cream. Paint the cream over the faded or discoloured area. Use a paintbrush or foam brush to apply an even layer of the cream. An old toothbrush can also be used to brush the cream over the surface. Make sure to tape off or cover any coloured areas with clear tape or masking tape to protect them.
After applying the cream, seal the item in a plastic bag to prevent the cream from drying out. Place the item outdoors in direct sunlight, but not on a hot surface, such as asphalt. The sunlight will react with the hydrogen peroxide to reverse the sun damage. Check on the item every hour and rotate the bag to ensure even exposure to the sun.
For small items, another option is to submerge them in a bowl of 3% hydrogen peroxide for 24 hours. This method does not require exposure to sunlight.
It is important to note that the hydrogen peroxide treatment is not permanent. The plastic may need to be retreated in a few years as the free bromides can resurface. Additionally, some people believe that the process can make the plastic more brittle and fragile.
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Use a plastic buffing product
Sun-faded plastic can be renewed by using a plastic buffing product. This method is especially useful if you notice any scratches or cracks on the plastic surface.
First, carefully inspect the plastic surface to identify any scratches or cracks caused by sun damage. Then, choose a buffing product that is specifically designed for treating plastic surfaces. Apply a coin-sized amount of the buffing product onto a cloth rag. It is important to wear protective gloves to avoid staining your hands. Work the product into the scratches or cracks using circular motions. Be gentle and avoid scrubbing or applying too much pressure, as this can further damage the plastic.
Buffing products come in varying strengths, so choose one that is suitable for the depth of the scratches or cracks. You may need to apply multiple coats of the product for a more even finish. After applying the buffing product, use a clean microfiber cloth to wipe away any excess product from the plastic surface. This step is crucial to ensure that the product does not continue to act on the plastic surface, possibly causing further abrasion or discolouration.
Once you have removed the excess product, you can apply a plastic polish to enhance the appearance of the treated plastic. Most plastic polishes come in spray bottles, making them easy to apply. Simply move the nozzle across the plastic surface to achieve an even coating.
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Paint the plastic
Painting sun-faded plastic is a viable option for restoring its appearance. Before painting, it is important to clean the plastic surface with a wax remover or 90%+ alcohol solution. This will ensure that any dirt or residue is removed, which is crucial for a successful restoration. Additionally, protecting the surrounding areas is essential. Use masking tape to form a border between the plastic and any painted surfaces nearby, as paint can end up on windows and doors if not carefully contained.
Once the surface is prepared, sanding the plastic with 220-grit sandpaper will create a smooth foundation for the paint. It is important to apply firm pressure during this step, especially in areas that are severely discoloured. After sanding, use a dry brush to remove any excess dust, and then apply a primer to the surface. The primer will create a smooth and even base for the paint, resulting in a more professional-looking finish.
When choosing a paint, opt for a spray paint that can be applied directly to the surface. Keep the spray paint bottle approximately 18 inches away from the plastic while painting, and apply as many coats as needed to achieve full coverage. Allow sufficient drying time between coats, as recommended by the paint manufacturer.
After painting, a clear primer can be applied as a protective layer. This will help preserve the paint job and prevent dirt and damage from stripping away the paint over time.
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Frequently asked questions
You can renew sun-faded plastic by using a plastic restorer product. First, clean the plastic surface with a wax remover or an alcohol solution. Then, apply the restorer with a foam applicator or a microfiber cloth.
You can use commercial plastic conditioning products, hydrogen peroxide, plastic buffing products, plastic polish, sandpaper, vinegar, bleach, or heat guns.
You can use a trim restoration product to renew sun-faded plastic on your car. First, clean your car with car wash soap and water. Then, apply the trim restorer using a foam applicator or microfiber cloth.
You can prevent sun-faded plastic by regularly treating plastic items with commercial plastic conditioning products. You can also park your car in a shaded area to avoid sun exposure.
