
There are many ways to refinish car interior plastic. Some people choose to paint their interior pieces, while others may use a product like Plastic Restore or Turtle Wax Trim Restorer to clean and protect their plastic trim. When painting, it is important to take your time and follow the steps carefully to avoid a rushed and flawed finish. It is also crucial to use the right products, with SEM paint products being recommended by some. To restore plastic trim, it is important to first clean the surface thoroughly, and then apply a protectant to shield the plastic from UV damage, heat, rain, and snow.
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What You'll Learn

Cleaning plastic interior
To refinish your car's interior plastic, you must first clean it thoroughly. This is an important step to ensure that the refinishing products adhere well to the plastic surface and to avoid trapping any dirt or grime.
Before cleaning, it is important to note that dish soap is not recommended for interior plastics as it can break down the oils in the plastic, causing it to look and feel less appealing. Instead, use a dedicated interior detailer, such as Turtle Wax Dash & Glass, or a multipurpose cleaner and disinfectant. With these products, you can simply spray and wipe down your interior surfaces. Pay special attention to intricate areas such as air vents and the cracks and crevices of your dashboard, using cotton swabs or small detailing brushes to remove stubborn stains and soil buildup.
If you are using a dash cleaner, be aware that many of these products contain alcohol-based solvents such as n-propoxypropanol, propylene glycol ether (for glass), and isopropanol. While these can be effective for occasional use, they can also deteriorate the clear coat on your plastic surfaces over time, leading to paint fade. Therefore, it is recommended to use a protectant after cleaning with these products. Look for protectants containing lanolin and natural moisturizers, or alternatively, water-based silicone products.
For a more natural approach, you can simply use soap and water for cleaning. This method is gentle and effective, especially if you have stubborn stains that need extra attention.
Once your interior plastic surfaces are thoroughly cleaned and dried, you can move on to the next steps of refinishing, which may include restoring the colour and applying a protective coating to prevent UV damage and maintain the softness and hydration of the plastic.
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Choosing the right product
When it comes to choosing the right product to refinish your car's interior plastic, there are a few key factors to consider. Firstly, it is important to select a product that not only restores the original colour but also protects the surface from further damage. UV damage is a common issue for car interiors, causing fading and discolouration over time. Look for products that contain UV inhibitors to protect against this, such as Torque Detail's Plastic Restore or 303 Aerospace Protectant Spray. These products will also help to restore the colour and elasticity of the plastic, ensuring it looks like new again.
If you intend to paint your interior plastic, it is crucial to choose a paint product that is specifically designed for this purpose. SEM paint products are highly regarded for their prep and application process, offering a flawless finish. It is also important to take your time during the painting process and work in optimal temperatures, usually room temperature or above.
Before applying any refinishing product, it is essential to thoroughly clean the plastic surface. Avoid using dish soap, as it can break down the natural oils in the plastic, leading to dryness and further deterioration. Instead, opt for a dedicated interior detailer like Turtle Wax Dash & Glass, or a simple solution of soap and water. For stubborn stains, you can use a stronger cleaner, but be sure to follow up with a protectant to safeguard the surface.
Finally, consider the specific type of plastic you are refinishing. Some products are better suited for vinyl or hard plastics, so be sure to read the labels and reviews to ensure you are choosing the right product for your needs. Taking the time to select the appropriate product will ensure a successful refinishing project and protect your car's interior for years to come.
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Painting techniques
Painting the interior plastic of your car can be a delicate process. Firstly, it is important to take your time and not rush the job. It is crucial to clean the plastic thoroughly before painting. Avoid using dish soap, as it can break down the oils in the plastic. Instead, use soap and water, or a dedicated interior detailer like Turtle Wax Dash & Glass, or a multipurpose cleaner. Be sure to pay attention to intricate spaces such as air vents and dashboard crevices, using cotton swabs or small detailing brushes to remove stains and soil buildup.
Once the plastic is thoroughly cleaned and dried, you can begin the painting process. It is recommended to work in a temperature-controlled environment, ideally at room temperature or above. Start by applying a very light first coat of paint, and allow it to dry completely. Then, apply a second coat, followed by a third coat if needed. Ensure that you do not apply the paint too thickly, as this can lead to an uneven finish.
It is important to use a high-quality paint product specifically designed for painting interior plastic, such as SEM paint products, which have been recommended by many DIY enthusiasts. These products often include UV inhibitors to prevent fading and cracking. Additionally, consider using a protectant over the painted surface to provide extra protection and a barrier against UV damage.
Some products, like Turtle Wax Trim Restorer, can help restore the original colour of faded plastic while also protecting it from further damage caused by heat, rain, and snow. This product can be applied with a microfiber towel and will keep your plastic trim soft and hydrated.
Another alternative method to restore the colour of plastic is to use a UV LED lamp. By placing the car in a dark garage and shining the UV light on specific spots, you can restore the original colour. However, this method may require spraying the interior with a specific chemical mixture to achieve optimal results.
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Preventing damage
To prevent damage to your car's interior plastic, it is important to take care of your car with regular washes, polishes, and proper storage, especially if you live in a place that experiences intense summers and winters.
Firstly, it is important to avoid using dish soap on interior plastics. Dish soap helps break down and remove oil, and oils are what give plastic its colour and shine. Therefore, using dish soap can cause the plastic to lose its colour. Instead, use soap and water to clean the plastic surfaces. If you must use a cleaner, protect the surface with a protectant after. Look for protectants that contain lanolin and natural moisturisers, or use water-based silicone.
Secondly, the sun is a major cause of damage to plastic parts. Ultraviolet rays dry out the oils in the plastic and damage the material at a molecular level. To prevent this, you can use an advanced ceramic shield covering, which is designed to prevent sun damage. Alternatively, you can perform a silicone lubricant spray treatment two to four times a year, and use protectant in between. A quality protectant usually contains UV blockers to prevent deterioration.
Finally, if your plastic interior has scratches, you can remove them by first cleaning the plastic surface, then using a heat gun on a medium-low setting to heat the scratched area. Be careful not to heat the surface for too long, as it can melt or become permanently damaged. Once the surface has cooled and hardened, sand down any uneven areas to ensure a smooth finish.
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Protecting against UV rays
Protecting your car's interior plastic from UV rays is essential to maintaining its aesthetic appeal and durability. Here are some effective ways to shield your car's interior plastic from the sun's harmful rays:
Park in the Shade or in a Garage
One of the simplest ways to protect your car's interior plastic from UV damage is to park your car in the shade or, even better, in a garage. By keeping the car out of direct sunlight, you significantly reduce its exposure to UV rays, minimizing the risk of damage.
Use Sun Shields or Window Shades
Sun shields or window shades are excellent tools for reflecting UV rays away from your car's interior. These shields are designed to block or deflect sunlight, creating a barrier that protects the plastic surfaces and other interior components from the sun's harmful effects.
Apply a Protective Coating
There are various products available that can provide additional protection for your car's interior plastic. One popular option is 303 Automotive Protectant, which is safe for plastic and other materials like vinyl, rubber, and finished leather. This product repels dirt, dust, and stains while also offering UV protection. Optimum Car Wax is another option that contains UV inhibitors found in clear coats, helping to rejuvenate and protect the interior plastic.
Use a Car Cover
Investing in a good-quality car cover can provide an extra layer of protection against UV rays. A car cover shields the entire vehicle from direct sunlight, keeping the interior plastic surfaces safe from prolonged exposure to the sun.
Install a Windshield Protection Film
If your car's side, back, or sunroof glass lacks built-in UV protection, consider installing a windshield protection film. This film adds an extra layer of defense, specifically targeting the UV rays that enter through the glass. It is an effective way to preserve the integrity and appearance of your car's interior, including the plastic surfaces.
Maintain Leather Upholstery
Leather upholstery is particularly susceptible to UV damage, leading to fading and cracking. To prevent this, follow the manufacturer's guidelines for caring for and maintaining your leather seats. Regular conditioning and cleaning can help protect the leather from the sun's harmful effects.
Remember, UV rays can cause plastic surfaces to fade, crack, and deteriorate over time. By implementing these protective measures, you can effectively safeguard your car's interior plastic, maintaining its visual appeal and extending its lifespan.
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Frequently asked questions
To refinish your car's interior plastic, you should first clean the plastic with soap and water or a dedicated interior detailer like Turtle Wax Dash & Glass. You can also use a multipurpose cleaner and disinfectant spray. Be sure to pay attention to intricate spaces such as air vents and the cracks and crevices of your dashboard. Once you have thoroughly cleaned your interior plastic, you can apply a trim restorer product, such as Turtle Wax Trim Restorer, 303 Aerospace Protectant Spray, or Torque Detail's Plastic Restore. These products will restore the colour of your plastic and protect it from UV damage.
There are several products available to refinish car interior plastic. Some popular options include Turtle Wax Trim Restorer, 303 Aerospace Protectant Spray, and Torque Detail's Plastic Restore. You can also use SEM paint products, which have been recommended by DIYers.
To prevent your refinished car interior plastic from fading, you should use a product that contains UV inhibitors to protect against sun exposure. Most trim restorer products, like Turtle Wax Trim Restorer, contain these UV inhibitors. You should also apply a protectant to the surface after cleaning with a dash cleaner, as most contain UV inhibitors to prevent fading. Look for protectants that contain lanolin and natural moisturisers, or use water-based silicone.
Yes, you can change the colour of your car's interior plastic. You can use SEM tintable vinyl paints, which come in a wide range of colours. You can also use Cerekote, which has been recommended by some users. If you are painting your interior plastic, be sure to follow the proper steps to avoid peeling or cracking. Allow sufficient time for each coat of paint to dry, and do not apply the paint too thickly.











































