
Black plastic trim on cars can become faded, grey, or discoloured over time due to exposure to UV rays, harsh weather conditions, neglect, and road contaminants. This can negatively affect the car's appearance and resale value. To prevent and restore fading, a range of products can be used, including protectants, dressings, sprays, gels, and dyes. These products can enhance or restore the deep black colour of the trim and provide protection from the elements. Some popular product options include Torque Detail Ceramic Spray, Trim Kote, Solution Finish, and various spray paints. It is important to research different brands and choose the appropriate product for the specific type of plastic and desired outcome.
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What You'll Learn

Use a premium protectant to treat plastic, rubber or vinyl areas
The plastic, rubber, or vinyl areas of your car are susceptible to damage from UV rays, harsh weather conditions, neglect, and road contaminants. To prevent this, you should use a premium protectant to treat these areas while they are still undamaged and unfaded.
There are various products available on the market that can be used to treat and protect these surfaces. Nextzett, for example, offers a range of car interior care products that provide long-lasting protection and a factory-fresh appearance. Their CockPit Premium product is an interior plastic cleaner that can be used on a daily basis to clean and protect a wide range of interior surfaces, including dashboards, navigation screens, finished leather, and plastic trim. It contains mild cleaners and sun-blocking agents that repel dust and grime while leaving a subtle, non-slip finish.
Another option is to use a plastic restorer, such as Solution Finish, which can restore dark grey and black plastics to a deep, rich finish without the greasy look that cheaper restorers can leave behind. It is absorbed into the plastic and breaks down oxidation, and can be used on both black and grey plastic. Following the application of a restorer, you can use a protectant or ceramic lite product to enhance and extend the life of the treatment and help reduce negative environmental effects.
If you are looking for a more permanent solution, you can consider painting your plastic trim. This involves cleaning the surface, wiping it with a wax and grease remover, spraying an adhesion promoter, and then painting with a flexible primer and exterior satin paint. This process will provide a long-lasting solution, but it is important to note that it may not be suitable for load-bearing surfaces.
In addition to using protectants and restorers, it is important to regularly clean your car's plastic, rubber, and vinyl surfaces. This will help remove dirt, grime, and surface impurities, ensuring that your car looks and feels like new. By combining regular cleaning with the use of premium protectants or restorers, you can effectively treat and protect the plastic, rubber, or vinyl areas of your car.
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Prevent plastic oxidation by using a finishing product
Plastic trim pieces on cars are susceptible to damage because they do not have a layer of UV-inhibiting clear coat like the paint, wheels, and headlights. This means that every plastic piece will eventually fade, crack, and dry out unless it is protected. The oxidation of plastics leads to degradation, causing an unpleasant appearance and the potential for more rapid degradation.
To prevent plastic oxidation, it is recommended to protect the trim before it fades. This can be done by using a premium protectant or finishing product to treat the plastic areas of the vehicle while they are still undamaged and unfaded. By regularly applying a protectant or dressing to the exterior plastic trim, you can prevent future oxidation and fading.
One popular product for restoring and protecting black plastic trim is Solution Finish. It is a solvent-based modified black carbon product that dissolves existing oxidation, fills the microscopic pores of the treated part with black carbon, and contains antioxidants and light stabilizers to prevent further oxidation. It is recommended to start with a thorough cleaning of the trim to remove any residue or impurities, allowing the product to penetrate deeper and bond with the trim. After applying Solution Finish with a microfiber applicator or foam pad, wipe off any excess product and allow it to dry for at least six hours. A second application can be applied for longer-lasting results.
Another product mentioned is Over The Top, a UV protectant for plastic that can be used as a topper over Solution Finish to enhance and extend its protection. It is a long-lasting product that does not need to be reapplied after every car wash. After applying Over The Top, it is recommended to let it dry for 20 to 30 minutes, and additional coats can be applied 30 minutes apart, with a maximum of three coats.
In conclusion, while plastic oxidation is a common issue for car owners, it can be prevented and treated using various finishing products available on the market. By regularly maintaining and protecting the plastic trim, car owners can maintain the aesthetic appeal and prolong the lifespan of their vehicles.
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Use a plastic restorer to restore black plastic trim
To protect black plastic trim on cars, you can use a plastic restorer. This is a cost-effective way to improve the appearance of your car. However, it is a short-term solution as the plastic will eventually turn grey and dull again.
Step 1: Wash and scrub the trim
Start by washing and scrubbing the affected plastic trim with a dedicated cleaner and a medium-bristle brush. Remove any dirt, dust, or wax residue. For best results, clean the plastic trim with isopropyl alcohol to ensure there is no residue, only bare plastic.
Step 2: Apply the plastic restorer
Use a microfiber applicator, foam applicator, or cotton pad to apply the plastic restorer onto the plastic trim. Massage the product over and into the pores and texture of the plastic trim surface, ensuring that you cover the entire piece of trim. Emphasize any stained areas.
Step 3: Remove excess product
Allow the plastic restorer to penetrate the plastic trim for a few minutes. Then, use a clean microfiber towel to wipe away any excess product.
Step 4: Allow the product to dry
Follow the instructions on your chosen product for the recommended drying time. For some products, you may need to allow the plastic to dry for 6 hours or more.
Step 5: Apply additional coats (optional)
Depending on the product, you may be able to apply additional coats for longer-lasting results. For example, Solution Finish recommends waiting 20 to 30 minutes between coats and applying no more than 3 coats.
It is important to note that while plastic restorers can enhance the appearance of your car, they are not a permanent solution. To maintain the black color of your plastic trim, you may need to reapply the restorer regularly or explore other protection methods.
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Use a heat gun or repaint the trim
Using a heat gun on black plastic trim is a quick and budget-friendly fix. Wash and dry the plastic trim before using the heat gun. Set the heat gun to a low or medium setting to avoid warping the plastic. Move the heat gun in slow, sweeping motions, ensuring even heat distribution. The heat gun will drive some of the oils to the surface, temporarily restoring its black colour. However, it also pulls oils from below the surface, leaving the plastic weaker and prone to further oxidation.
Another option is to repaint the trim. Tape off the paint and spray the plastic. Apply another coat after 15 minutes. However, this method may result in an uneven finish.
While using a heat gun or repainting the trim are viable options for restoring black plastic trim, they are not practical solutions. If you're not careful, you can cause irreversible damage to the trim and the surrounding panels.
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Clean plastic trim with an alcohol-based cleaning solution
To protect black plastic trim on cars, it is important to clean the plastic trim with an alcohol-based cleaning solution. This will ensure that the trim is free of any dirt, grime, or other contaminants that could prevent the protectant from adhering properly.
One effective way to clean plastic trim is to use isopropyl alcohol, which is effective at removing oils, grease, waxes, and other residues. It is important to note that different types of plastics may react differently to isopropyl alcohol, so it is recommended to dilute it and test it on a small area first. After cleaning with isopropyl alcohol, a product like Nanolex Trim Rejuvenator can be applied to restore and protect the trim.
Another option is to use a solution of 70-90% alcohol to dissolve any silicone-based products and flush out the microscopic pores of the plastic. This will ensure that the plastic is free of any residue or film that could interfere with the application of a protectant. It is worth noting that some products, such as degreasers and decontaminants, may leave a film or particles on the surface, so a simpler approach with alcohol may be more effective.
Once the plastic trim is thoroughly cleaned and dried, a protectant or dressing can be applied to prevent future oxidation and fading. It is recommended to use a quality trim dressing or a product specifically designed for restoring black plastic trim, such as Solution Finish Trim Restorer or 3D Trim Care. These products will help bring back the shine and deep black colour of the trim.
By regularly cleaning plastic trim with an alcohol-based solution and applying a protectant, you can maintain the aesthetic appeal of your car and prevent the black plastic trim from fading, cracking, or drying out.
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Frequently asked questions
To protect black plastic on cars, you can use a trim protectant, a trim dressing, or a trim dye. It is important to regularly clean the plastic with a soapy sponge or alcohol-based cleaning solution, and to ensure that the plastic is completely dry before applying any protectant or dressing.
Some products that can be used to protect black plastic on cars include Solution Finish, Torque Detail Ceramic Spray, Trim Kote, Plastidip, and Bumper & Trim Gel.
To restore black plastic on cars, you can use a plastic restorer such as Solution Finish, or a spray paint such as Rust-Oleum or Duplicolor. It is important to clean the plastic with an alcohol-based cleaning solution before applying any restorer or spray paint.










































