
Keeping your car's exterior plastic trim looking fresh and new can be a challenge, especially with the damage caused by UV rays, harsh weather, and road contaminants. Faded plastic trim can make your car look older than it is and ruin the overall appearance of a well-maintained vehicle. While there are various methods and products available to restore automotive exterior plastic, it's important to choose a safe and effective solution that will last. Some popular options include Meguiar's Ultimate Black Plastic Restorer, CarGuys Plastic Restorer, and Solution Finish Trim Restorer, which offer different features such as UV protection, ease of application, and longevity. Other methods like using a heat gun or painting over the plastic are also available, but they may not be as practical or long-lasting.
| Characteristics | Values |
|---|---|
| Cause of damage to car trim | UV rays from sunlight |
| Effect of UV rays on plastic | Dehydration and degradation |
| Other causes of damage | Exposure to harsh weather and road contaminants |
| Effect of harsh weather | Harmful surface waters thrown on the plastic |
| Solution to restoring plastic | Use plastic restorers |
| Plastic restorers | Meguiar's Ultimate Black Plastic Restorer, Car Guys Plastic Restorer, Torque Detail, Mothers Back to Black Trim & Plastic Restorer Polish |
| Plastic restorers features | Seals non-porous surfaces with UV protection, restores original black surfaces, repels water, no harmful chemicals, restores color |
| Application tools | Microfiber cloth, microfiber applicator, foam applicator |
| Application process | Clean plastic trim, apply restorer, wipe off excess, allow to dry |
| Alternative solutions | Paint over plastic, use a heat gun |
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What You'll Learn

Using a plastic restorer
Before applying a plastic restorer, it is important to clean your car's trim thoroughly to remove any tiny contaminants that may be invisible to the naked eye. These contaminants can cause the original colour of the plastic to appear dull and faded. You can use a product like Isopropyl Alcohol to ensure that there is no residue, only bare plastic. Alternatively, you can use a detailer like Hybrid Solutions Streak-Free Interior Mist for a quick wipe-down or a car wash shampoo like Hybrid Solutions PRO Pure Wash for a more thorough clean.
When choosing a plastic restorer, you may want to consider products like Meguiar's Ultimate Black Plastic Restorer, which is highly rated and designed to restore all exterior plastic, vinyl, and rubber trim. It uses advanced hybrid polymer technology that seals non-porous surfaces with UV protection and dries almost instantly without leaving any streaks or a greasy residue. CarGuys Plastic Restorer is another option that is safe to use, environmentally friendly, and water-repellent. It also comes with a foam applicator for easy application.
After cleaning and choosing your preferred plastic restorer, you can now apply the product to your car's exterior plastic trim. Use a microfiber cloth or a foam applicator to massage the product into the plastic in an even motion. Allow the solution to penetrate for a few minutes, then use a clean microfiber towel to buff off any excess product. Be sure to follow the specific instructions on your chosen product for the best results.
For added protection, you can use a sealant like Solution Finish Over The Top Plastic Sealer, which protects plastic trim from harmful UV rays and prevents fading and deterioration. This can be used as a standalone treatment on new or good-condition plastics or as a topper on plastics that have been restored with a plastic restorer.
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Painting over it
Painting over automotive exterior plastic is a great way to revamp the exterior of your car and improve its aesthetics. It is also a cost-effective method to hide any marks and create a smooth appearance. Here is a detailed guide on how to paint over automotive exterior plastic:
Sanding:
Before painting, it is important to sand the plastic surface to remove any bobbles, raised marks, or the 'shine' of the plastic. Using sandpaper with different grit levels, such as 150-grit to 1200-grit, will help achieve the smoothest finish. Work your way up by grit level to gradually smoothen the surface. Remember to wear a mask to avoid inhaling any dust particles.
Cleaning:
After sanding, clean the plastic surface with soapy water to remove any dirt or debris. This ensures that the surface is ready for the next step.
Priming:
Choose a primer suitable for plastic surfaces. Hold the primer can about 6-7 inches away from the surface and start spraying. Apply 3-4 coats of primer, allowing sufficient drying time of about 15 minutes between coats. The primer will help the paint adhere better to the plastic surface.
Painting:
Select a paint suitable for automotive plastic parts, such as acrylic lacquer, polyurethane, or spray paint specifically designed for plastics. Acrylic lacquer provides a sleek and polished look, while polyurethane offers exceptional durability and resistance to chemicals and UV rays, making it ideal for exterior parts. Hold the paint can at the same distance as the primer and apply the paint in even, steady motions. Wear a mask during this step to avoid inhaling any paint fumes.
Applying Lacquer:
Once the paint has dried, apply a clear lacquer coat to provide a shiny appearance and protect the colour. Again, hold the lacquer can about 6-7 inches away from the surface and spray evenly.
Polishing:
Finally, use microfiber polishing cloths to polish the painted surface, ensuring a smooth and glossy finish.
Remember to work in a well-ventilated area and always follow the instructions on the product labels. With these steps, you can give your car's exterior plastic a fresh and renewed look.
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Applying heat
One method of renewing automotive exterior plastic is to apply heat to the surface. This can be done using a heat gun, which you can purchase or may already have in your garage. This method is gaining popularity due to its prevalence on social media platforms such as YouTube, where users have demonstrated its effectiveness.
When using a heat gun, it is important to maintain a distance of about 3 inches from the plastic surface. Set the heat gun to a high-heat setting and move it back and forth over the area you wish to treat. The heat will cause the plastic to melt slightly, and you will see the pigments of the plastic rise to the surface, restoring the colour and texture of the material.
It is important to note that this method may not work for all types of plastic and could potentially cause warping if not done carefully. The duration of the treatment's effectiveness is also variable, lasting from a few weeks to a year or more, depending on the specific plastic's chemical makeup and environmental factors.
While this method can provide good results, it is recommended to use it sparingly as repeated treatments will deplete the plastic's natural oils, causing it to turn grey and dull. Additionally, it is important to prioritise proper care and regular use of rejuvenation products to maintain the appearance of your automotive exterior plastic.
Overall, applying heat to renew automotive exterior plastic can be a quick and effective solution, but it should be used in conjunction with other maintenance methods to ensure the best long-term results.
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Cleaning with isopropyl alcohol
To renew automotive exterior plastic, one method is to use isopropyl alcohol, also known as isopropanol, to clean the plastic before applying a restorer.
Isopropyl alcohol is a useful product to have for wiping down surfaces. It can be used to remove residue, grease, oils, waxes, and other gunk, such as sticker residue, from plastic trim. It is also safe to use on plastic. It is recommended to dilute isopropyl alcohol before use, with a 20% dilution considered safer. It is important to note that isopropyl alcohol should not be used on painted or glass surfaces, as it may cause damage.
When cleaning with isopropyl alcohol, it is recommended to use a spray bottle and gently wipe the surface with a paper towel after each spray. This will help to remove any residue or gunk that may be on the plastic. It is also suggested to use a microfiber sponge or applicator pad to spread a thin coat of the solution over the area, allowing it to penetrate for 3-4 minutes before buffing off the excess with a microfiber towel. This process will ensure that any remaining residue or oils are removed from the plastic surface.
After cleaning with isopropyl alcohol, it is important to allow the plastic to dry completely before applying any restorer or protectant products. This will ensure that the product adheres properly to the plastic and provides the desired results.
While isopropyl alcohol can be effective in cleaning and preparing plastic trim for restoration, it is important to note that it may not work on all types of plastic. Some users have reported mixed results, with isopropyl alcohol working well on certain plastics but not on others. Therefore, it is recommended to test the solution on a small, inconspicuous area first before applying it to the entire surface.
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Using a UV protectant
Over time, almost every car will get sun-faded, UV-damaged plastic trim. Without protection, plastic that was originally black will fade to grey, making the car look older than it is. To prevent this, you can use a UV protectant, such as a plastic restorer, on your car's exterior plastic trim.
There are many products on the market that can protect your car's exterior plastic from UV damage. One popular option is Meguiar's Ultimate Black Plastic Restorer, which is designed to restore all exterior plastic, vinyl, and rubber trim. It uses advanced hybrid polymer technology to seal non-porous surfaces with UV protection, allowing it to outlast conventional protectants. CarGuys' Plastic Restorer is another option that is formulated to restore and renew plastic, rubber, or vinyl surfaces. It contains patented additives to boost longevity, and it leaves a durable UV guard to protect against harmful UV rays that cause fading, browning, and cracking.
If you are looking for a more natural option, Solution Finish offers a black plastic and vinyl restorer that uses "ancient ingredients" with advanced polymer technology. It is a silicone-free solution that uses all-natural oils to restore original black surfaces to a deep, rich, black finish without the wet look. However, some customers have reported that it is not suitable for exterior use.
In addition to commercial products, there are also home remedies that you can try to protect your car's exterior plastic from UV damage. One option is to use a garage to store your car, as this provides the most effective UV protection. Another option is to use a trim protectant right from the start when you buy a new vehicle. By washing, waxing, and treating the trim, you can prevent any deterioration or discolouration.
When choosing a UV protectant for your car's exterior plastic, it is important to consider the effectiveness, ease of application, longevity, and value for money. Some products may work well but may not be cost-effective, while others may be affordable but may not provide the desired results. It is also important to follow the instructions for application and reapplication to ensure the product works effectively.
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Frequently asked questions
There are several products available to restore automotive exterior plastic, such as Meguiar's Ultimate Black Plastic Restorer, Solution Finish Trim Restorer, and CarGuys Plastic Restorer. To use these products, you should first clean the plastic trim with isopropyl alcohol, then apply the product with a microfiber cloth or sponge, and finally, wipe off any excess with a clean towel.
The main cause of damage to car trim is exposure to UV rays from sunlight, which dehydrate and degrade the plastic. Another cause of damage is exposure to harsh weather and contaminants from the road, such as surface water containing grime.
Some alternative methods to renew automotive exterior plastic include using a heat gun, painting over the plastic, or using a plastic weld with a heat gun. However, these methods may not be as effective or practical as using a plastic restorer product. For example, using a heat gun can warp the plastic if you are not careful, and painting over the plastic can be time-consuming and expensive.











































