Sofia Martinez
Plastic is a common material in modern cars, used for everything from headlights to bumpers. However, sun exposure, oxidation, and engine heat can cause plastic to fade, discolour, crack, or deteriorate over time. Luckily, there are several methods to rejuvenate old car plastic, including using a heat gun, olive oil, plastic trim restorers, or paint.
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What You'll Learn
Using a heat gun
When using a heat gun, it is crucial to follow the proper steps to ensure effective and safe restoration. Firstly, prepare the plastic surface by cleaning it with a gentle cleaning solution and a soft cloth to remove any dirt or debris. If there are any old coatings, such as paint or other materials, they should be removed as well. Once the surface is prepared, you can start applying heat to a small test area to determine the appropriate temperature and observe the color change. Hold the heat gun around 6-8 inches away from the surface, and you should see the faded plastic begin to darken.
After determining the correct temperature, you can proceed with the restoration process by applying heat to the rest of the plastic surface. It is important to maintain a distance of about 3 inches from the surface and move the heat gun slowly to avoid overheating any specific area. Once the entire surface has been heated, allow the plastic to cool naturally. During the cooling process, you may notice some rough or uneven spots, which can be addressed through sanding after the plastic has cooled down completely.
While the heat gun method can effectively restore the appearance of old car plastic, it is important to understand its limitations. The results are temporary, and the plastic will eventually fade again as the oils evaporate. Additionally, the repeated use of heat guns can make the plastic more brittle over time, increasing the chances of cracking and breaking. Therefore, it is recommended to explore other methods, such as using plastic restorers or coatings, in conjunction with regular care and maintenance, to achieve more durable and long-lasting results.
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Applying olive oil
To rejuvenate old car plastic with olive oil, you must first wash and dry the plastic surface. This will help the plastic absorb the oil better. Use soap and warm water to clean the plastic, and dry it off with a towel.
Once the plastic is clean and dry, you can apply the olive oil. Pour a small amount of olive oil, about the size of a coin, onto a washcloth, paper towel, or dry microfiber towel. You can use extra virgin olive oil, which is the best option according to some sources.
Gently rub the oiled cloth onto the plastic in small, circular motions, focusing on the faded areas. If the cloth becomes dirty, turn it over, add more oil, and continue rubbing until all faded areas are covered. Remember that a little olive oil goes a long way, so you don't need to use too much.
After applying the olive oil, let the plastic trim absorb the oil. This should take around five to ten minutes. Then, grab a separate dry towel and buff the surface lightly using rapid circular motions. Turn the towel over and give it a final buff to remove any excess oil and leftover streaks.
While olive oil can help restore the appearance of old car plastic, it is important to note that it is not a permanent solution. The shiny, black finish provided by the olive oil will fade over time, especially after repeated washings or exposure to weather. To maintain the rejuvenated appearance of the plastic, you should reapply olive oil at least once a week. Additionally, parking your car in a garage or shaded area can help prevent sun damage and slow down the fading process.
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Car plastic moisturizers
There are various car plastic moisturizers available on the market, and they can be purchased from automotive stores or online. Some popular options include:
- Meguiar's Ultimate Black Plastic Restorer: This product is designed to enhance faded trim and give it a rich darkness and shine that can withstand washing and rain. It also offers long-lasting UV protection.
- CarGuys PR-8OZ: This restorer is ideal for various materials, including vinyl and rubber, and provides protection for several months. It contains unique UV inhibitors that prevent fading and drying out.
- Solution Finish SFB: This is a highly effective black plastic restorer that renews and protects black surfaces, leaving a deep black matte finish without a greasy shine. A little goes a long way, so despite its small quantity, it offers good value for money.
- Carfidant CARF-C304: This water-based formula is eco-friendly and safe for the environment and users. It is suitable for restoring interior and exterior surfaces, including bumpers, and protects against UV rays and road grime.
In addition to these dedicated car plastic moisturizers, some people have found success using natural oils, such as olive oil, to restore car plastic. This method involves rubbing the oil onto the plastic surface and allowing it to soak in before buffing with a dry towel. However, this approach may require more frequent reapplication compared to specialized products.
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Repainting
Firstly, it is important to note that the process of preparing plastic car parts for painting differs depending on whether the plastic is painted or dyed. Painted plastic will need to have the paint removed first, and the only safe way to do this is with a chemical stripper. You will need to wear protective clothing, including a dust mask, eyewear, and gloves, and ensure you are working in a well-ventilated area. Use an acid-resistant brush to apply the stripper, and once the paint begins to bubble, use a scraper to remove it.
Dyed plastic can be painted over directly, but it is still important to prepare the surface. You should clean the plastic with a wax and grease remover and a lint-free cloth, and then lightly scuff the surface with sandpaper. This will help the paint adhere to the plastic. You should also use a wax and grease remover on the scuffed surface.
Once the surface is prepared, you can begin to paint. It is recommended to use a primer first, to ensure the paint takes to the surface. Hold the can around 6-7 inches away from the plastic, and apply 3-4 coats, waiting 15 minutes between coats. Once the primer is dry, you can begin to apply the paint. Hold the can at the same distance as before, and apply the same number of coats as the primer, allowing each coat to dry before applying the next. Finally, apply 4-5 coats of lacquer to get the best finish.
There are several types of paint to choose from, depending on the plastic you are painting and the finish you desire. Water-based paints are environmentally friendly and quick-drying, making them a good choice for interior plastic. Acrylic lacquer gives a sleek and polished look, while polyurethane paints provide exceptional durability and are ideal for exterior plastic. You may also want to consider a UV-cured powder coating, which provides more durable plastic trims.
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Commercial plastic restorers
Plastic restorers are a great way to rejuvenate old car plastic. They are specially formulated products that can transform the look of your vehicle by replenishing the plastic with essential oils and protective agents, restoring its original colour and shine.
There are several commercial plastic restorers available on the market, such as Chemical Guys' Plastic Restorer, which offers specialised formulas to restore, protect and enhance plastic, vinyl and rubber components. Their Tire + Trim Gel Plastic and Rubber Restorer is a gel-based formula that restores flexibility and prevents premature ageing, while also protecting against rain, washes and daily exposure to the elements.
CAR GUYS DETAIL also offers a plastic restorer that works on rubber, vinyl and plastic. It is a water-based polymer formula that contains a patented polymer additive to enhance performance and extend longevity.
Other commercial plastic restorers include Mothers Back-to-Black for heavily faded surfaces and CERAKOTE® Plastic Trim Restorer, which is a ceramic-based product that brings out the pigments and bonds to your plastic.
These products are a great way to restore old car plastic and keep your vehicle looking fresh and well-maintained.
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Frequently asked questions
There are several methods to rejuvenate old car plastic. You can use a heat gun, olive oil, black plastic moisturizers, or a plastic trim restorer.
The heat gun method involves applying low heat to the plastic to temporarily restore colour by bringing natural oils back to the surface. Make sure to cover nearby non-plastic objects with a tarp to avoid damage.
The olive oil method involves rubbing olive oil on the faded area. After applying the oil, buff the surface lightly using rapid circular motions.
