Maya Ellison
Plastic is a vital component of modern cars, and its presence is only increasing. It is used for headlights, bumpers, grilles, and interior materials. Plastic car trim can become damaged, faded, and oxidized, making the car look older. However, there are several ways to restore plastic trim to its original state. This can be done by using a plastic polish, foam pad, rotary polisher, and soft cloths. Additionally, heating the plastic with a heat gun can help draw out oils, but it must be done carefully to avoid warping. Applying olive oil, WD-40, or a trim restoration product can also enhance protection. Various products are available, such as Turtle Wax's Trim Restorer, which offers a protective coating against UV damage.
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What You'll Learn
How to restore faded plastic trim
Plastic car trim can fade, crack, or deteriorate due to sun exposure and unpredictable weather conditions. There are various methods to restore faded plastic trim, ranging from DIY solutions to commercially available products.
One popular DIY method involves using olive oil or canola oil. To do this, clean the plastic trim with soapy water to remove any dirt or grime, then rinse and dry it thoroughly. Apply a small amount of oil to a microfiber towel and gently rub it onto the faded plastic using circular motions. Let the oil soak for 5 to 10 minutes, then buff the surface with a dry towel. Note that this method may require frequent reapplication, as the finish will fade with repeated washings or weather exposure.
Another DIY approach involves using products like WD-40 or mayonnaise. Simply apply the product to the faded areas and rub it in before wiping off any excess.
For a more permanent solution, commercially available plastic trim restorers can be purchased from auto parts shops or online stores. These products are easy to apply and can effectively restore the trim's colour and shine. Examples include Solution Finish, Black WOW, pinnacle black label ceramic trim restorer, and Forever Black Bumper & Trim Dye Kit. Solution Finish, in particular, has received positive reviews for its effectiveness in restoring faded plastic trim. It is recommended to use a sealer, such as Solution Finish Over The Top Plastic Sealer, to protect the trim from UV rays and prolong the results.
Some people have suggested using a heat gun to restore faded plastic trim. However, this method can be controversial, as it may damage the plastic or cause the colour to fade more quickly. It involves heating the plastic to its glass-transition temperature, which allows the molecules to move around and potentially restore the colour. While it can provide temporary results, it may not be a long-lasting solution.
It is important to manage expectations when attempting any restoration method, as some products may not provide the desired level of longevity. Additionally, it is worth noting that cleaning the plastic trim with isopropyl alcohol before applying any restoration product can help ensure better results by removing any residue.
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Using a heat gun
When using a heat gun, it is important to exercise caution as too much heat can melt the plastic surface. It is recommended to hold the heat gun between four to six inches away from the surface to prevent burning or melting. Starting with a clean or freshly-washed surface is also important to avoid burning contaminants into the plastic. One should also heat the surface one area at a time to prevent damage.
It is also suggested to tape off any edges of paintwork where it meets the trim, as the heat will damage the paintwork. Additionally, some users recommend using a product to treat the surface after heating, such as olive oil, WD-40, or a trim restoration product, to make the surface darker and protect it from the elements.
The longevity of the results from using a heat gun varies, with some users reporting success for up to a year, while others have found that the treatment only lasts a few weeks. It is worth noting that this method can cause the trim to become discoloured, brittle, and more susceptible to fading. Therefore, it is important to carefully consider the risks and benefits before using a heat gun to restore plastic car trim.
Overall, using a heat gun can be an effective way to restore plastic car trim, but it requires careful execution to avoid damage and may not provide long-lasting results.
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Applying a plastic restorer
Before applying a plastic restorer, it is important to clean the plastic trim thoroughly to remove any dirt, stains, and other abrasive contaminants. This can be done with isopropyl alcohol or soapy water, followed by a rinse with clean water and a wipe down with a microfiber towel.
Once the trim is clean and dry, you can apply the plastic restorer. Some products, like Torque Detail's Plastic & Trim Restorer Spray, can be simply sprayed on and wiped off. Others, like Solution Finish Trim Restorer, may be applied with a microfiber cloth or foam applicator. It is important to wear gloves and eye protection, as some products can stain skin and clothing.
After applying the restorer, allow it to dry for at least six hours. Some products may require additional coats, applied 30 minutes apart. A second application may be necessary after several months, depending on the product and the condition of the trim.
It is also important to note that plastic restorers are not a permanent solution for damaged trim. Over time, the trim may turn grey and dull again, and repeated applications of heat or chemicals may further damage the plastic. In some cases, it may be necessary to replace the trim altogether.
Some popular plastic restorer products include Meguiar's Ultimate Black Plastic Restorer, Turtle Wax Graphene Acrylic Trim Restorer, and Solution Finish Trim Restorer. These products can be found at auto parts shops, online stores, or retailers like Amazon, eBay, and Walmart.
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Polishing plastic trim
Plastic trim can become damaged, faded, and oxidised, making your car look older. When it’s time for your car care routine, be sure to give your plastic trim some attention.
Wash the Trim
Start by washing your trim for the best results. A quick wash with mild liquid soap and water will work.
Tape Around the Trim
Next, use masking tape to cover all areas surrounding the trim, including glass, paint, metal, and any other surfaces. You don’t want your plastic polishing compound or rotary polisher to touch anything other than the trim.
Apply the Polishing Compound
Using a low to medium speed, apply the plastic polishing compound by placing the foam pad on the plastic trim while the rotary polisher is spinning. You may need to tilt the pad so it only touches the trim and not the other areas of your car’s exterior. Use light pressure to slowly cover the entire surface of the trim with the compound. Repeat the application twice.
Remove Excess Compound
Use a soft cloth to remove any excess polishing compound from the trim. If you still see scratches or marks, use the rotary polisher to apply more compound.
Buff Off the Polish
Once you’ve checked and are happy with how the trim looks, it’s time to buff off the polish. Run a clean foam pad across the trim a few times, using the same technique you used to apply it.
Remove the Tape
Remove the masking tape and use another clean, soft cloth to wipe down the trim and the surrounding area. This will remove any remaining polishing compound, tape residue, and dust or dirt.
Alternative Methods
There are other ways to polish plastic trim. For a quicker fix, you can use a trim restoration spray to remove discoloration and dirt. For unpainted, unsealed plastic, heating the plastic trim with a heat gun is another simple solution.
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Trimming excess plastic
Prepare the Work Area and Gather Tools:
Firstly, park your car in a well-lit and spacious area that provides easy access to the plastic trim. Cover any nearby surfaces or components that you want to protect from dust or debris. Gather the necessary tools and safety equipment, including eye protection, gloves, and a respirator.
Choose the Right Cutting Tool:
Select a suitable cutting tool for trimming the excess plastic. Some common options include a Dremel oscillating blade, a sharp wood chisel, a utility knife, or side/flush cutters. Choose a tool that provides precision and control for the specific trim area you're working on.
Clean the Plastic Trim:
Before trimming, ensure that the plastic trim is clean and free of any dirt, grease, or debris. Use a mild liquid soap, isopropyl alcohol, or a dedicated cleaner to thoroughly clean the surface. This step ensures that you're working on a smooth surface and helps prevent contaminants from burning or sticking to the plastic during the trimming process.
Mark the Trim Area:
Using a marker or masking tape, carefully mark the areas where you plan to trim the excess plastic. This step helps you visualize the trimming process and ensures that you don't remove more material than intended. Take your time and be precise in your markings.
Start Trimming:
Begin the trimming process by slowly and carefully cutting away the excess plastic with your chosen tool. Work in small increments to avoid overcutting. If using a power tool like a Dremel, ensure it is set to a low speed and always wear the appropriate safety gear to protect against flying debris. Take breaks as needed to assess your progress and ensure you're satisfied with the direction of the trim.
Smooth and Finish:
Once you've removed the desired amount of excess plastic, use fine-grit sandpaper or a file to smooth out any rough edges. Be gentle and work in the direction of the trim to avoid creating scratches or uneven surfaces. Finally, clean the trimmed area with a soft cloth and, if desired, apply a plastic restorer or protectant to enhance the appearance and protect the trim from UV damage.
Remember, always exercise caution when working with sharp tools and power equipment. Take your time, work in a well-ventilated area, and follow all safety instructions provided by the tool manufacturers.
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Frequently asked questions
You can restore your car's plastic trim by washing it with mild liquid soap and water, taping around the trim, applying a plastic polishing compound, and then buffing off the polish with a clean foam pad. You can also use a plastic restorer or "trim restorer" to make your trim shine and increase the time between cleanings.
You can use car trim products, plastic trim restorers, or waxes specifically formulated for detailing exterior plastic trim. When using a wax, make sure it doesn't contain any polishing agents, as these can scratch soft plastics.
You can protect your car's plastic trim from UV damage by using a plastic restorer or a UV protectant product, such as a ceramic spray coating or a plastic sealer.
It is recommended to maintain your car's plastic trim regularly as part of your car care routine. Washing your car frequently with a pH-balanced car wash soap and a quality car wash mitt can help prevent the plastic trim from becoming neglected and faded.
Some signs that your car's plastic trim needs restoration include fading, oxidation, the appearance of white stripes or "zebra stripes," and a cloudy or aged appearance. These issues can be caused by exposure to the sun, inclement weather, and normal wear and tear.
