Omar Khalid
Scratches on a car's plastic trim are unsightly and can depreciate its value. Luckily, there are several ways to remove or reduce them. This paragraph will discuss some of the methods and products that can be used to restore scratched plastic car trim, ranging from cleaning and polishing to using heat guns and grain pads.
How to restore scratched plastic car trim
| Characteristics | Values |
|---|---|
| Deep scratches | Remove the plastic panel, cover surrounding materials with automotive masking tape, cut off protruding bits of plastic with a razor, sand down the scratches, clean the surface, and apply rubbing compound. |
| Light scratches | Use a plastic scratch polish kit, clean the surface with a damp cloth, apply a mild abrasive such as toothpaste or baking soda, and buff away excess. Alternatively, use a heat gun or hair dryer with caution to avoid melting the plastic. |
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What You'll Learn
Using a heat gun or hairdryer
Before applying heat, the plastic surface should be cleaned and dried thoroughly. This ensures that the repair is carried out on a clean surface, leading to better results. Use a microfiber cloth and an interior car cleaner to wipe away any dirt, grime, or contaminants.
When using a heat gun, set it to the recommended heat setting, usually half power. For a hairdryer, full power is recommended. Keep the tool moving at a constant rate, maintaining a distance of four to six inches from the surface to ensure even heat distribution. Stop applying heat once the plastic loses its texture and appears glossy.
After heating, you can use a grain pad to smooth out the scratch. Press the grain pad onto the softened plastic, allowing the edges of the scratch to blend into the surrounding area. Once satisfied with the finish, let the area cool before using fine-grit sandpaper to smooth out any remaining imperfections. Finally, clean and polish the area to complete the repair.
This technique is particularly useful for addressing deeper scratches. It is more advanced than simply sanding or applying heat and sanding, as these methods may result in dents or further scratches. By softening the plastic with heat, repairs can be made more effectively, restoring the plastic trim to its former glory.
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Sanding down scratches
First, use a razor to cut off any protruding plastic bits from the scratched area. This will ensure a smooth surface to work on. Next, use superfine grit sandpaper to sand down the scratches thoroughly. Sand with the grain of the plastic, not against it, to avoid further damage. Take your time and be gentle, as aggressive sanding can create more scratches or damage the plastic.
After sanding, clean the surface to remove any debris, dirt, or grime. Spray a car interior cleaner onto a microfiber towel and rub it onto the sanded area. This step is crucial to ensure that the plastic is free of any residue before proceeding to the next steps.
Once the surface is clean and dry, you can apply a mild abrasive, such as toothpaste, furniture polish, baking soda, or plastic polish, to the scratch. Gently rub the product into the scratch using a soft cloth or microfiber towel. This will help to fill and smooth out the scratch, improving its appearance.
For deeper scratches, you may need to use a grain pad to smooth out the area and give it a textured finish that blends with the surrounding plastic. Apply the grain pad with light pressure, then let the area cool and harden. Finally, sand the area again with superfine-grit sandpaper to ensure a smooth and authentic-looking finish.
While sanding is an effective method for removing scratches, it is important to note that it may not completely restore the plastic to its original state, especially if the scratches are severe or the texture of the plastic has been altered. In some cases, a combination of methods, such as cleaning, sanding, and polishing, may be necessary to achieve the best results.
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Applying a mild abrasive
If you are dealing with deep scratches, it is easier to work on the scratch when the plastic panel has been removed from the car. This will give you better access to the different sides and surfaces of the panel. If you cannot remove the panel, use automotive masking tape to cover and protect the surrounding materials.
Before applying a mild abrasive, use a razor to cut off any bits of plastic that may be protruding from the scratched area. Then, clean the plastic surface with a damp cloth, rubbing in a circular motion around the scratch. Dry the area to remove any dirt.
Now, you can apply a mild abrasive to the scratch. Toothpaste, furniture polish, baking soda, or plastic polish can be used for this purpose. You can also use a rubbing compound, which can smooth out the surface just as well as sandpaper. Apply the compound to the scratched surface using a microfiber towel and wipe off the excess using a second towel. For better results, consider applying a second coat.
After applying the mild abrasive, you can use a grain pad to smooth out deeper scratches and give a textured finish to the plastic so that it blends in. Choose a grain pad that most closely resembles the plastic trim in your car and apply it using light pressure.
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Using a rubbing compound
If you are dealing with deep scratches on your car trim, it is easier to work on the scratch when the plastic panel has been removed from the car. This will give you better access to the different sides and surfaces of the panel. If you cannot remove the panel, use automotive masking tape to cover and protect the materials around the plastic panel, such as wood trim, leather, or vinyl.
Use a razor to cut off any bits of plastic protruding from the scratched area. Then, sand down the scratches using sandpaper. Wet the sandpaper to avoid it being too abrasive and gently rub over the scratch in a circular motion. Keep buffing until the scratch vanishes, but don't be too forceful. Clean the area with a fresh cloth and allow it to dry.
Now, you can apply a rubbing compound to the scratched surface using a microfiber towel. Wipe off the excess compound using a second towel. For better results, give the surface another application of the rubbing compound.
After this, you can apply polish onto the scratched surface and then buff off the excess polish using another microfiber towel.
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Painting over the scratch
Painting over a scratch on a car's plastic trim can be a permanent solution to restoring its appearance. ColorBond Pro Tech Trim Color paint is a product designed for this purpose, providing a beautiful, durable, and long-lasting finish. Here is a step-by-step guide to achieving a successful paint job:
Preparation:
Before starting the painting process, it is crucial to prepare the surface properly. First, remove any protruding bits of plastic from the scratched area using a razor. Next, sand down the scratch with sandpaper to smoothen the surface. It is recommended to use 800 or 1200 grit sandpaper and sand in a circular motion, being careful not to over-sand, which can alter the texture of the plastic. After sanding, clean the surface with soap and water or a specialised car interior cleaner, ensuring that all debris, dirt, and grime are removed.
Masking:
To protect the surrounding areas of the car from paint, use specialised painters' masking tape, also known as automotive masking tape. Cover the areas you do not want to be painted, such as wood trim, leather, or vinyl. This step is important to prevent accidental paint application to unwanted areas.
Priming:
To ensure the paint adheres well to the plastic surface, it is recommended to apply a primer. ColorBond Clear Adhesion Promoter is a suitable product for this purpose. Apply it in light mist coats before painting.
Painting:
Now, you are ready to apply the ColorBond Pro Tech Trim Color paint. This paint is designed to bond well with automotive trim and is available in various colours, including black, silver, charcoal, titanium, and white. Apply light mist coats of paint, adding additional coats as needed until you achieve the desired coverage and finish.
Alternative Methods:
If you prefer not to use paint, there are other methods to consider for restoring scratched plastic trim. One method involves using a heat gun to melt the thin plastic edges, making the scratches less noticeable. However, this method can be tricky, and too much heat can deform the shape of the plastic. Another option is to use a plastic restorer product, such as Torque's Plastic Restore, which can effectively restore the finish on plastic trim. Additionally, some interior trim cleaners can temporarily darken the edges of scratches, making them less visible, although this solution may not last long.
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Frequently asked questions
The best method depends on the depth of the scratch. For light scratches, a plastic scratch polish kit may be sufficient. These kits include a polishing compound, microfiber towels, and buffing pads. For deeper scratches, you may need to use sandpaper or a rubbing compound to smooth out the surface before applying polish.
First, remove the plastic panel from the car if possible. If not, use automotive masking tape to cover and protect the surrounding materials. Use a razor to remove any protruding bits of plastic from the scratch, then sand down the scratch using sandpaper. Clean the surface with a microfiber towel and car interior cleaner to remove any debris, then apply a grain pad to smooth out the scratch and give the plastic a textured finish.
Yes, some people suggest using a heat gun, hairdryer, or blowtorch to melt the thin plastic edges caused by scratches. However, this method can be risky as it may deform the shape of the plastic or ruin the panel.
