Maya Ellison
Painting your truck's plastic fender flares can be a fun and rewarding project, but it requires some preparation and patience. The process involves choosing the right paint and primer, preparing the surface by sanding and cleaning, and applying the paint with spray cans or brushes. It is important to consider whether you want your fender flares to match the colour of your truck or go for a contrasting shade to make them stand out. Additionally, you need to decide if you want to remove the fender flares before painting or drape and tape them to protect the rest of the vehicle. This guide will cover the steps and tips to help you achieve a smooth and professional finish when painting your truck's plastic fender flares.
| Characteristics | Values |
|---|---|
| Paint type | Enamel or polyurethane automotive paint |
| Paint form | Spray paint |
| Paint colour | Matching or contrasting vehicle colour |
| Paint code | Found in the manual or by contacting the manufacturer |
| Paint removal | Not recommended; paint strippers ruin the flare |
| Paint drying time | 24 hours |
| Surface preparation | Clean with a high-quality degreaser, sand, and wipe with a tack cloth |
| Primer | Polypropylene primer; 1-2 coats |
| Primer application distance | 1-2 inches from the flares |
| Primer drying time | 10 minutes between coats |
| Adhesion promoter | Bulldog adhesion promoter |
| Painting | Follow manufacturer's directions and guidelines |
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What You'll Learn
Choosing the right paint
Painting plastic truck fender flares can be a great way to customise your vehicle and protect the paintwork. It's important to choose the right paint to ensure a durable and attractive finish. Here are some factors to consider when selecting the paint for your project:
Type of Paint
Choose a paint that is specifically designed for automotive use. Enamel or polyurethane automotive paints are recommended for painting fender flares as they will provide a durable and high-quality finish. Avoid using traditional spray paints, as they may not give the desired results.
Colour
Decide whether you want your fender flares to match the colour of your truck or create a contrasting look. If you want them to match, locate the paint code for your vehicle, which can usually be found in the user manual or by contacting the manufacturer. This will ensure that you purchase the exact same colour. Alternatively, if you want your flares to stand out, choose a contrasting colour that complements the truck's paint job. For example, red, yellow, or white fender flares can look striking on a black car.
Surface Texture
Consider the surface texture of your fender flares. Smooth, non-textured flares are generally easier to paint and tend to yield better results. Spray paint may not produce desirable results on textured or grainy surfaces, as it can blur the texture and result in an unappealing finish. If you have textured fender flares, you may need to sand them down before painting, which can be more labour-intensive.
Primer and Adhesion Promoter
In addition to the paint itself, you will need to choose a suitable primer and adhesion promoter. A primer will help the paint adhere to the surface of the flares and provide a smooth base for the paint to be applied. An adhesion promoter, such as Bulldog adhesion promoter, will further enhance the paint's ability to stick to the plastic surface.
Clear Coat
Consider using a clear coat after painting your fender flares. A clear coat can provide additional protection and enhance the overall finish. However, be aware that clear coats can sometimes fail, resulting in delamination or cracking. If you choose to apply a clear coat, ensure that it is of good quality and applied properly to prolong its durability.
By considering these factors and following the manufacturer's instructions, you can choose the right paint for your plastic truck fender flares and achieve a professional-looking finish.
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Preparing the surface
Firstly, it is important to clean the surface of the flares thoroughly. Use a high-quality degreaser to wipe down the outer surface and ensure that all dirt, grease, and contaminants are removed. Avoid using lacquer thinner or reducer as it will repel the paint. Even a small amount of residue can cause the paint to flake and peel, so be sure to wipe the surface with a tack cloth or rag to remove any remaining dust.
The next step is to sand the surface of the flares. Use 200-grit sandpaper to smooth out any imperfections and rough spots. Sanding creates a rough surface that allows the primer and paint to adhere better. After sanding, use a tack cloth again to remove any dust created during the sanding process.
To further enhance the adhesion of the paint, treat the surface of the flares with an adhesion promoter. This step is especially important for plastic parts that have been on the truck for a while. Apply the adhesion promoter according to the manufacturer's instructions, and wait the recommended amount of time before proceeding to the next step.
Once the adhesion promoter has dried, lightly sand the flares again using a finer grit, such as 2000-grit sandpaper or a Scotch-Brite pad. This step helps to create an even smoother surface for the primer to adhere to. After sanding, wipe the surface with a tack cloth once more to ensure that all dust is removed.
Now, you are ready to apply the primer. Choose a primer that is suitable for plastic surfaces, such as a polypropylene primer. Hold the primer can 1-2 inches away from the surface and use long sweeping motions to apply an even coat. Be sure to follow the manufacturer's instructions for the best results. Allow the primer to dry completely before applying a second coat if needed.
By following these steps, you will have properly prepared the surface of your truck's plastic fender flares for painting, ensuring a smooth and long-lasting finish. Remember to work in a well-ventilated area and wear the necessary protective gear, such as respirators and gloves, when working with paints and chemicals.
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Applying primer
Painting plastic truck fender flares is a great way to customise your vehicle. It's important to prepare the surface of the fender flares before applying primer and paint. Firstly, clean the outer surface of the flares with a high-quality degreaser and a tack rag or tack cloth. Even a small amount of dust can cause the paint to flake and peel. Next, sand the surface of the flares with 200-grit sandpaper to remove any imperfections and rough spots. After sanding, wipe the surface again with a tack cloth to remove any remaining dust.
Once the surface is prepared, it's time to apply the primer. Primer helps the paint adhere to the plastic and provides a smooth base for the paint to stick to. It's important to choose a primer that is suitable for plastic, such as a polypropylene primer or a primer specifically designed for trucks, vans, and SUVs, like Dupli-Color Truck/Van/SUV primer. Apply the primer in a well-ventilated area and wear a respirator to protect yourself from inhaling fumes.
When you are ready to start priming, lay the flares on a piece of plastic or newspaper to protect your work surface from any paint spray. Hold the primer can 1-2 inches (2.5-5.1 cm) away from the flares and start spraying in long, sweeping motions. Try to cover as much of the flare as you can in one sweep and continue spraying until you have applied a full coat. If you have detached the flares, don't forget to spray a coat of primer inside the interior of the fender flares as well.
After the first coat of primer is applied, let it dry completely before deciding if a second coat is needed. Some primers may require a light sanding between coats to ensure a smooth finish. If you are unsure, refer to the manufacturer's instructions for the specific primer you are using. It is important to follow the manufacturer's directions and guidelines exactly to ensure the best results.
If you are painting over existing paint, it is generally recommended to leave the existing paint on the flares. Paint strippers can damage the plastic and cause the new paint to peel. However, if the existing paint is peeling or flaking, you may need to sand it down to create a smooth surface before applying the primer.
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Painting techniques
Surface Preparation:
Before painting, it is essential to prepare the surface of the fender flares. Start by removing the flares from the vehicle if you want to paint the inside and outside of the flares. Use a socket wrench to unscrew the bolts connecting the flares to the vehicle. If you don't want to detach them, you can drape a tarp and use electrical tape to protect the areas you don't want to paint. Next, clean the surface with a high-quality degreaser to remove any grease, oil, or dirt. Avoid using lacquer thinner or reducer as it will repel the paint. Once the surface is clean, use sandpaper (200-grit) to sand down the surface, removing any imperfections and creating a smooth base for the paint to adhere to. This step is especially important for plastic parts that have been on the truck for a while, as it prevents embedding contaminants into the plastic. After sanding, wipe down the surface with a tack cloth or rag to remove any dust or debris.
Priming:
The priming step is crucial for a durable and even paint job. Apply an adhesion promoter to the sanded surface, following the manufacturer's instructions. This will help the paint adhere better to the plastic surface. Once the adhesion promoter has dried, apply a coat of primer. Spray primers are commonly used for automotive parts, and it is recommended to use an enamel or polyurethane automotive primer. Hold the primer can 1-2 inches away from the surface and use long sweeping motions to ensure even coverage. Apply a full coat, and if the flares are detached, spray the interior as well. Allow the primer to dry completely before moving on to the next step.
Painting:
When choosing a paint, opt for an enamel or polyurethane automotive paint designed for vehicles. Avoid using traditional spray paint, as it may not give the desired results. You can select a paint colour that matches your vehicle by finding the paint code in the user manual or contacting the manufacturer. If you want your flares to stand out, choose a contrasting colour, such as red, yellow, or white on a black car. Apply the paint using the same technique as the primer, holding the can 1-2 inches away and using long sweeping motions. Ensure you follow the paint manufacturer's directions and guidelines for the best results.
Drying:
Allow the paint to dry completely before handling the flares or reattaching them to the vehicle. Drying times may vary depending on the paint used, but it is generally recommended to let the paint harden for at least 24 hours. Do not attempt to remove or strip the paint if you need to repaint, as it can ruin the surface of the flares.
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Drying and maintenance
Drying:
Allow the painted fender flares to dry thoroughly before proceeding to the next step or reinstalling them. It is recommended to let the paint cure for at least 24 hours. This extended drying period ensures that the paint completely hardens and reduces the risk of accidental smudging or damage. Patience is key during this stage, as rushing the drying process may lead to unsatisfactory results.
Maintenance:
To maintain the appearance and longevity of your painted plastic truck fender flares, consider the following tips:
- Cleaning and Protection: Regularly clean your fender flares with mild soap and water to remove dirt and grime. Avoid using harsh chemicals or abrasive cleaning agents, as these can damage the paint. You can also apply a protective coating, such as a clear coat, or wax, to provide an extra layer of protection and enhance the shine.
- Avoid Paint Strippers: If you need to repaint the fender flares, avoid using paint strippers. These can soak into the plastic and cause the next coat of paint to peel off. Instead, leave the existing paint and apply new paint directly over it.
- Prevent Chipping and Cracking: Plastic painted fenders are prone to chipping and cracking, especially when exposed to off-roading conditions or extreme weather. To enhance the durability of the paint, consider adding a flex additive to the primer, colour coat, and clear coat. This additive can help the paint withstand flexing and impact, reducing the chances of chipping and cracking.
- Consider Professional Services: If you are concerned about maintaining the paint job, consider seeking professional assistance. Autobody shops can provide refinishing services and add protective coatings to extend the life of the paint. They can also advise on colour matching and paint blending to ensure a seamless finish.
- Regular Inspection: Keep an eye on the condition of the paint. If you notice any signs of clear coat failure, delamination, or excessive chipping, address the issue promptly. Touch-ups and repairs can help extend the life of the paint job and prevent further deterioration.
- Aftermarket Considerations: If you have purchased aftermarket fender flares, be aware that the quality of the paint job may vary. Proper maintenance and regular inspections can help identify any issues specific to aftermarket parts.
Remember, proper drying and maintenance of your painted plastic truck fender flares will not only enhance their visual appeal but also ensure their longevity, saving you time and money in the long run.
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Frequently asked questions
You can choose to either match the colour of your truck or go for a contrasting shade. To match the colour, find the paint code in your manual or by contacting the manufacturer. If you want to make a statement, opt for a contrasting colour like red, yellow, or white.
You will need an enamel or polyurethane automotive paint and primer. Other supplies include gloves, a scotch brite pad, a tack cloth, cotton towels, dish soap, rubbing alcohol, wax/grease remover, sandpaper, an adhesion promoter, and a plastic trigger for spraying.
First, clean the surface of the flares with a degreaser and wipe them down with a tack cloth to remove any dust. Then, sand the surface to smoothen it out and apply a coat of primer. After the primer has dried, you can start spraying the paint.
It is recommended to paint the fender flares before installing them. If you want to paint them while they are attached to the vehicle, drape a tarp and use electrical tape to protect the areas you don't want to paint.
Allow the paint to dry for at least 24 hours. This will ensure that the paint hardens completely.
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