Maya Ellison
Painting plastic fender flares can be a great way to customize your car and give it a unique look. Most fender flares come in a matte black color, but some car owners prefer to paint them to match their vehicle or add a pop of color. Painting plastic fender flares requires some preparation, including cleaning, sanding, and priming, before applying the paint. It's important to use the right tools and techniques to ensure a smooth and durable finish. Additionally, it's crucial to consider the type of paint and whether any additives are needed to ensure the paint adheres well to the plastic surface.
Table showing the characteristics of painting plastic fender flares:
| Characteristics | Values |
|---|---|
| Default colour | Matte black |
| Ease of painting | Smooth flares are easier to paint than textured flares |
| Painting process | Sanding, cleaning, applying adhesion promoter, applying primer, painting |
| Paint type | Spray paint |
| Paint colour | Matching vehicle colour, two-tone, or contrasting colour |
| Paint durability | Chipping and cracking may occur, especially with plastic painted fenders |
| Paint preparation | Clean with hot water and soap, wipe with alcohol, use auto prep |
| Adhesion promoter | Bulldog adhesion promoter, or equivalent |
| Primer | Polypropylene primer, spray primer |
| Coats | Light to medium coats, 2-3 coats |
| Drying time | 10 minutes between coats, one hour after final coat |
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What You'll Learn
Cleaning and preparation
Painting fender flares can be a great way to customise your car and give it a unique look. Before painting, it is important to clean and prepare the fender flares to ensure a smooth and long-lasting finish. Here is a step-by-step guide to cleaning and preparing plastic fender flares for painting:
Firstly, remove the fender flares from your vehicle. They are usually attached by bolts inside the wheel well, which can be unscrewed with a socket wrench. Once removed, lay them on a flat surface, such as a table or workbench, for easier handling. If you prefer not to detach them, you can drape a tarp and tape off the flares to protect the rest of your car from paint.
Next, clean the fender flares thoroughly. Start by using a high-quality degreaser to wipe down the outer surface, removing any grease, dirt or grime. You can also use a small bucket of hot water with a capful of Dawn dish soap and a Scotch-Brite pad to scrub the flares, rinsing them with a hose afterwards. This initial cleaning step is crucial to ensure the paint adheres properly and prevents contaminants from becoming embedded in the plastic.
After cleaning, dry the fender flares with a clean towel. Then, use a tack cloth or rag to wipe down the surface again to remove any remaining dust or debris. Even trace amounts of dust can cause the paint to flake and peel, so it is important to be thorough.
Once the fender flares are clean and dry, it's time to sand the surface. Use 200-grit sandpaper to sand down the flares, removing any imperfections, rough spots or old paint. If there are dents, use a heat gun to push them out, then sand the area to level it. This step helps create a smooth base for the paint to adhere to.
After sanding, wipe the fender flares again with a tack cloth to remove any dust. Then, treat the surface with an adhesion promoter, such as Bulldog Adhesion Promoter, to improve the paint's adhesion. Spray a light to medium coat of the promoter onto the flares, waiting about 10 minutes before applying another coat if needed.
Finally, apply a primer to the fender flares. Spray a full coat of primer onto the surface, holding the primer can 1-2 inches away and using long sweeping motions. If the flares have been detached, don't forget to spray the interior as well. The primer will provide a good base for the paint to stick to and ensure a more even finish.
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Sanding
Before you begin sanding, it is crucial to clean the fender flares thoroughly. Use a high-quality degreaser to remove any dirt, grease, or contaminants from the surface. You can also use a small bucket of hot water with a capful of Dawn dish soap and a Scotch-Brite pad to scrub the flares, followed by a wipe-down with a clean cotton towel and alcohol. This multi-step cleaning process ensures that the surface is free of any residues that could interfere with the sanding or painting process.
Once the fender flares are clean and dry, it's time to start sanding. Use 200-grit sandpaper to sand the surface of the flares. This will help remove any imperfections, rough spots, or texture on the plastic. Sanding also creates a slightly rough surface, which will allow the primer to adhere better. Make sure to sand evenly and consistently across the surface, especially if you are sanding by hand.
After the initial sanding, wipe the fender flares with a tack cloth to remove any dust or debris created during the sanding process. This step is crucial, as any remaining dust can cause the paint to flake or peel later on. Make sure to wipe the flares thoroughly and inspect them closely to ensure no dust particles are left behind.
Next, treat the surface of the fender flares with an adhesion promoter. This step is essential when painting plastic surfaces, as it helps the paint adhere better and creates a longer-lasting finish. Spray a light to medium coat of the adhesion promoter, followed by a couple of medium coats, waiting about 10 minutes between each coat.
After applying the adhesion promoter, it's time for a light sanding once again. Use a very fine-grit sandpaper, such as 2000-grit, or a Scotch-Brite pad to lightly sand the surface. This step helps create an even smoother surface and prepares the plastic for the primer application.
Finally, wipe the fender flares with a tack cloth one more time to ensure that all dust and debris are removed. You are now ready to apply the primer and paint, following the instructions provided by your chosen paint product.
Remember that proper preparation, including thorough cleaning, sanding, and the use of adhesion promoters, is key to achieving a high-quality and durable paint finish on plastic fender flares.
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Priming
Firstly, it is crucial to prepare the surface of the fender flares adequately. This involves cleaning the flares with a suitable degreaser to remove any dirt, grease, or oil buildup. It is recommended to use an all-purpose automotive degreaser and avoid lacquer thinner reducers, as they can make the plastic flares difficult to paint. After cleaning, the flares should be thoroughly dried before proceeding to the next step.
The next step is to sand down the fender flares using sandpaper. It is advisable to use fine-grit sandpaper, such as 200-grit or 2000-grit sandpaper, and move it in a back-and-forth motion to smooth out any imperfections or bumps on the surface. This step helps create a uniform and even surface for the primer and paint to adhere to. Ensure that you wipe away any dust generated during the sanding process using a tack cloth or a clean cloth.
Once the surface is adequately prepared, it's time to choose the right primer. For plastic fender flares, it is recommended to use a primer specifically designed for plastic surfaces, such as an etching primer or a polypropylene primer. Some primers, like Krylon, are known to work well with plastic and can be found at auto paint stores. It is essential to read and follow the manufacturer's instructions on the primer for the best results.
When applying the primer, it is best to use a spray can or a spray paint gun for even and consistent coverage. Hold the spray can or gun at a distance of 1-2 inches from the surface and use long, sweeping strokes to apply the primer. It is generally recommended to apply two thin coats of primer, allowing each coat to dry before applying the next. The primer should be given enough time to dry completely, and it should not feel sticky to the touch.
In some cases, it may be necessary to sand the primer after it has dried. Using a very fine-grit sandpaper, such as 2000-grit, gently smooth down the primed surface to ensure an ultra-smooth finish. This step helps create an even base for the paint and can enhance the overall quality of the final paint job. After sanding, be sure to wipe the surface with a tack cloth to remove any residual dust.
By following these steps, you will have properly primed plastic fender flares, ready for the paint application process. Remember that adequate preparation and priming are crucial for achieving a durable and aesthetically pleasing paint finish on plastic fender flares.
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Painting
Next, you will need to decide whether to paint the fender flares on or off your vehicle. If you choose to paint them on, drape a large piece of plastic or tarp over your car and apply tape to protect the areas you do not want to paint. If you choose to paint them off, remove the fender flares by unscrewing all the bolts connecting them to the vehicle with a socket wrench.
Before painting, the fender flares must be thoroughly cleaned and prepared. Use a high-quality degreaser and a tack cloth to wipe down the surface, removing any dust or debris. Then, sand the surface with 200-grit sandpaper to remove any imperfections and rough spots. After sanding, wipe the surface again with a tack cloth to ensure it is completely clean. Treat the surface with an adhesion promoter, then sand again very lightly with a 2000-grit Scotch-Brite pad.
Now, you are ready to begin painting. First, apply a coat of primer to the fender flares, followed by a second coat if needed. Then, apply your chosen paint colour. It is recommended to use a light coat followed by a couple of medium coats, waiting around 10 minutes between each coat. Finally, apply a clear coat to protect the paint and add shine.
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Drying
Cleaning and Preparation:
Before beginning the painting process, it is essential to clean and prepare the plastic fender flares thoroughly. Start by using a high-quality degreaser to clean the outer surface, ensuring that all dirt, grease, and contaminants are removed. Next, use a tack cloth to wipe down the surface, removing any remaining dust or debris. This step is crucial, as even trace amounts of dust can cause the paint to flake and peel.
After cleaning and preparation, it is important to allow the fender flares adequate time to dry before proceeding with the painting process. The drying time will vary depending on environmental factors such as temperature and humidity. In general, it is recommended to allow the fender flares to air dry for at least a few hours, or until they feel dry to the touch. It is important to ensure that the fender flares are completely dry before moving on to the next step, which is sanding.
Sanding and Priming:
Once the fender flares are dry, it's time to begin the sanding process. Use 200-grit sandpaper to sand the surface of the flares, removing any imperfections and creating a smooth base for the paint to adhere to. After sanding, wipe away any dust with a tack cloth. Next, apply an adhesion promoter to the surface of the flares, followed by a coat of primer. The primer will need to dry completely before applying paint, so allow sufficient time for this step, following the manufacturer's instructions.
Painting and Clear Coating:
When the primer is dry, you can begin painting the fender flares. Apply light coats of paint, waiting about 10 minutes between each coat. It is recommended to apply at least two coats of paint, ensuring a consistent and even finish. After the final coat of paint has been applied, let the paint dry thoroughly. The drying time will depend on the type of paint used and the environmental conditions. Once the paint is dry, you can apply a clear coat to protect the paint and add shine.
Final Drying and Curing:
After applying the clear coat, allow the fender flares to dry completely. This final drying process is crucial, as it ensures that the paint and clear coat are fully cured and hardened. The curing time will vary depending on the products used and environmental factors. Refer to the manufacturer's instructions for specific drying and curing times. Once the fender flares have cured, you can proceed with the installation process, following the manufacturer's guidelines.
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Frequently asked questions
The first step is to clean the flares with a high-quality degreaser and a tack cloth to remove any dust or debris.
It is recommended to remove the fender flares for the best results. However, if you choose not to detach them, you can drape a tarp and tape off the areas you don't want to paint.
You should use a special automotive spray paint designed for painting plastic car parts. It's important to choose a paint that is flexible and chip-resistant.
Before painting, it is crucial to use an adhesion promoter or a primer specifically designed for plastic surfaces, such as a 2K primer. This will help the paint stick to the plastic and prevent chipping.
Yes, you can match the colour of your car by finding the paint code in your vehicle's manual or by contacting the manufacturer. This will ensure that you purchase the exact same colour for a uniform look.
