
Faded plastic on a car can make it look old and dated. There are various ways to restore it, including using a heat gun, olive oil, canola oil, car wax, mayonnaise, or store-bought plastic restorers. Some methods are more effective than others, and some are more expensive.
How to restore faded plastic on a car
| Characteristics | Values |
|---|---|
| Commercial products | Solution Finish Trim Restorer, Meguiars Plastic Restorer, Mothers Back to Black Trim & Plastic Restorer |
| DIY solutions | Olive oil, canola oil, mayonnaise, WD-40, car wax |
| Tools | Microfiber applicator, foam applicator, microfiber towel, heat gun, blow torch |
| Steps | Clean the plastic trim, apply the product, wipe off excess, allow to dry, buff the surface, seal the trim |
| Tips | Use a sealant to protect against UV rays, avoid using heat |
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What You'll Learn

Using a heat gun
Before using a heat gun, it is important to prepare the vehicle. Cover any nearby non-plastic objects or surfaces with a heat-reflective material or a flame-resistant tarp to protect them from the heat. If the plastic object is dirty, wash it with soap and warm water and dry it off with a towel.
When using the heat gun, turn it on to a lower setting and move it in a gentle, sweeping motion about 3 inches away from the plastic surface. Be careful not to stop or slow down too much in one area, as this can cause the plastic to pool and become glossy. As you move the heat gun around, the plastic should change to a darker, richer colour. Once you have covered the entire surface, turn off the heat gun and inspect the colour. If you are happy with the result, you have finished restoring the object. If not, you can try applying olive oil or painting the object instead.
It is important to note that the heat gun treatment is not a long-lasting solution. The plastic will eventually fade again, and with repeated treatments, the plastic will become more brittle and prone to cracking and breaking. Additionally, the heat can damage parts near the plastic, so it is recommended to remove the trim before heat treatment. There are alternative methods to restore faded plastic, such as using olive oil, car wax, or plastic restorers like Solution Finish or Meguiar's Ultimate Black.
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Applying olive oil
If you want to restore the faded plastic on your car, one option is to use olive oil. Olive oil can restore black plastic's natural colour, clearing up any faded or discoloured areas. It is a simple, cost-effective method that can be done at home.
Firstly, wash the plastic surface with soap and warm water to ensure it is clean and free of any dust or debris. Dry the surface with a towel or cloth. It is important to ensure the surface is completely dry before applying the olive oil, so the oil does not slip off.
Next, pour a small amount of olive oil onto a clean cloth or paper towel. A little goes a long way, so start with a coin-sized amount and add more if needed. You can also apply the oil directly to the plastic, but be careful not to use too much.
Rub the oil onto the plastic in a circular motion, ensuring that you cover the entire faded area. Use a separate, dry cloth to wipe away any excess oil. The olive oil will absorb into the plastic and restore its natural colour.
Note that olive oil can go rancid after a few months, which may cause a bad smell. To avoid this, you can try using a product specifically designed for restoring car plastic, such as a black plastic moisturiser or a UV-resistant trim shine. These products can be found at most automotive stores and will provide longer-lasting results.
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Using car polish
Prepare the Plastic Surface:
Start by cleaning the faded plastic trim with a suitable cleaner or isopropyl alcohol. Ensure you remove all surface grime, dust, and dirt. Rinse the plastic trim well with clean water, and then dry it with a microfiber towel. It is essential to begin with a clean surface to achieve the best results.
Apply a Suitable Car Polish:
Choose a car polish designed specifically for restoring faded plastic trim. You can find these products at auto parts shops or online stores. Some popular options include Autoglym's Bumper and Trim Gel, Swissvax's Pneu, and Gtechniq G4 Permanent Trim Restorer. Follow the instructions on the product you choose, but typically, you will apply the polish directly to the plastic surface with a microfiber applicator or foam applicator.
Allow the Polish to Work:
After applying the car polish, let it sit for the recommended duration. Some products may require only a few minutes, while others might need more time to penetrate and restore the plastic. Refer to the manufacturer's instructions for the specific product you are using.
Buff the Surface:
Once the car polish has had sufficient time to work, use a clean, dry microfiber towel to buff the treated plastic surface. Work in light, rapid, circular motions to remove any excess product and create a smooth, even finish.
Repeat as Necessary:
Depending on the severity of the fading and the condition of your plastic trim, you may need to apply a second coat of car polish. If you do, follow the same steps again, ensuring you start with a clean surface before reapplying the polish.
Remember that while car polish can effectively restore faded plastic, it may not provide a permanent solution. Fading can reoccur over time due to exposure to sunlight and weather conditions. Regular maintenance and reapplication of protective products will help maintain the appearance of your car's plastic trim.
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Applying plastic dye
When applying plastic dye to your car, it is important to prepare the area well to ensure the dye adheres to the plastic. Firstly, ensure you are working in a well-ventilated area and that the space is well-lit. Place the items you want to dye on a large piece of cardboard to make them easier to work with. Mask off any areas that you do not want to be painted with dye.
Next, clean the plastic thoroughly. Use a product like SEM Soap with a grey scuff pad, paying close attention to textured or recessed areas. Rinse with water or wipe away any residue with a damp cloth and let the plastic dry. You can also use a product like Plastic & Leather Prep or Zero VOC Surface Cleaner, wiping in one direction with a clean, lint-free towel.
If you are using a product like SEM Color Coat, you will need to promote adhesion on the plastic. Apply a medium wet coat of Sand Free. While this is still wet, apply a light coat of Color Coat. Avoid applying the first coat of Color Coat too heavily, or sagging could occur. As the Sand Free evaporates, the Color Coat will be drawn into the surface, resulting in excellent adhesion.
If you are unsure of the type of plastic you are working with, place a drop of acetone on the back of the plastic and rub it with your finger. If the plastic smears and melts, use Sand Free. If acetone has no effect, use a Plastic Adhesion Promoter or XXX Adhesion Promoter. Apply one light coat, let it flash for 5 minutes, and then apply a full wet coat. Allow this coat to flash for 10-15 minutes, but no longer than 30 minutes, before topcoating.
Once the plastic is prepared, shake your can of dye well and apply light, thin coats, almost misting the dye onto the surface. The aim is to achieve a uniform look, so take care not to apply too much in one area. Allow each coat to dry for around 10 minutes before applying another. For a colour change, you may need 5-6 coats. Once complete, leave the item to dry for 12-24 hours before reinstalling it in your car.
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Using a sealant
First, it is important to prepare the plastic surface by cleaning it thoroughly. Start by washing the plastic trim with a suitable cleaner to remove any dirt, grime, or residue. Isopropyl alcohol is recommended for this step, as it will ensure the surface is completely bare. However, a simple solution of soapy water and a microfiber towel can also be used for this initial cleaning process. Ensure the plastic is completely dry before proceeding to the next step.
Next, you will need to choose a suitable plastic restorer product. There are various options available, such as Solution Finish Trim Restorer, which can restore the plastic to its original colour and enhance its appearance. Apply the product according to the manufacturer's instructions, which typically involves using a microfiber or foam applicator to gently rub the product onto the plastic in small, circular motions.
After applying the plastic restorer, you will need to allow it to dry thoroughly. The drying time may vary depending on the product used, but it is generally recommended to let it dry for at least six hours. Once it is completely dry, you can inspect the results and determine if a second application is necessary. A second coat can often provide even better results and extend the lifespan of the treatment.
Finally, to protect the restored plastic and ensure its longevity, you can apply a plastic sealant. Solution Finish Over The Top Plastic Sealer is a popular option that provides long-lasting protection against harmful UV rays, which can cause fading and deterioration. This step will help maintain the appearance of the plastic and reduce the need for frequent re-applications. The sealant can be applied using a similar method as the restorer, and it will provide a protective layer that enhances and extends the life of the treatment.
By following these steps and using a combination of a plastic restorer and sealant, you can effectively restore faded plastic on your car and protect it from future damage. This method will help to enhance the appearance of your vehicle and maintain its like-new condition. Remember to follow the specific instructions provided by the manufacturers of the products you choose for the best results.
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Frequently asked questions
You can restore faded plastic on your car by purchasing a plastic trim restorer from an auto parts shop or online store. You can also use olive oil, canola oil, or mayonnaise to restore shine to faded plastic.
Yes, you can use olive oil or mayonnaise to restore shine to faded plastic.
Clean the plastic trim with soapy water, rinse with clean water, and wipe dry with a microfiber towel. Apply a coin-sized amount of olive oil to the towel and gently rub the oil onto the faded plastic in small circular motions.
The longevity of plastic trim restorer varies. Some products claim to last up to a year, while others may need to be reapplied weekly or after every car wash.
Heat treatment can work to restore faded plastic, but it may not be permanent. Some people have reported that the colour fades back within minutes. It is also possible to damage the plastic with heat treatment.











































