Painting Plastic Quad Parts: A Step-By-Step Guide

how to paint plastic quad parts

Painting your ATV plastics is a great way to change the look of your ride without breaking the bank. It's not a simple task, but it's also not a very difficult one if you know what you're doing. The first step is to ensure your plastics are in good condition and that you have all the tools you need. Next, you'll want to thoroughly clean your ATV and remove any decals or dirt. Once that's done, you'll need to sand the plastic to create a rough surface that paint can stick to. After sanding, you'll need to prime the surface and then apply your paint. Finally, you'll need to let the paint dry and possibly apply a clear coat to protect your new paint job.

Characteristics Values
Clean the plastic Use a degreaser/soap, dish soap, steel wool, methylene chloride-based paint remover, scuff pad, or special plastic cleaner
Remove decals
Remove scratches Wet sand with 600-grit sandpaper
Remove shine Sand with 180-grit sandpaper, 220-grit sandpaper, or 320-grit sandpaper
Treat with flame Use a blowtorch
Prime Use a plastic adhesion promoter, or primer from Performance Bodies Inc.
Paint Spray paint, acrylic, or enamel. Common brands include Krylon, Valspar, and Rust-Oleum. Apply 2-4 light coats.
Seal Apply a clear coat

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Cleaning and preparing the plastic surface

To prepare the plastic surface of your quad parts for painting, start by removing them from the quad. This will make it easier to work on them without damaging the rest of the vehicle. Next, remove any decals or stickers on the plastic parts. Use dish soap and steel wool (00 or 000) to clean the surface thoroughly. You can also use a special plastic cleaner to ensure the surface is free of any chemicals or substances that might interfere with the paint adhesion. Let the cleaner sit for about 20 minutes before wiping it off.

Once the parts are clean and dry, you can start sanding the plastic to create a rough surface for the paint to adhere to. Sanding is an important step because most plastic has a glossy finish, and paint adheres better to a rough, matte surface. Use 180- to 220-grit sandpaper and gently sand all the surfaces you plan to repaint. If using an electric sander, be sure to use a soft, clean brush or cloth to remove all the dirt and debris from the sanding process.

After sanding, remove any water-soluble contaminants from the surface with a scuff pad and a solution of your choice. This will ensure that the surface is spotless and ready for the next step. You can also repeat the sanding process with 180-grit sandpaper to ensure you didn't miss any spots. If there are any deep scratches or high spots, use 600-grit sandpaper to smooth them out.

Finally, wipe down the entire surface with a pre-paint wax and grease remover. This will ensure that the surface is completely free of any substances that might interfere with the paint adhesion. You can then proceed with priming the surface, following the instructions on the specific primer you've chosen.

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Sanding the plastic

  • Clean the Plastic Surface: Before you begin sanding, it is essential to clean the plastic surface thoroughly. Use a mild dish soap or degreaser and warm water to remove any dirt, grease, or grime. For textured surfaces, you can use a scrubbing brush, while a soft cloth or sponge is ideal for smooth surfaces. Rinse the parts with fresh water and allow them to dry completely before proceeding.
  • Choose the Right Sandpaper Grit: The grit of the sandpaper you choose will depend on the condition and type of plastic you are working with. For most quad parts, a fine-grit sandpaper, such as 220-grit or 320-grit, is recommended. If you need to remove deep scratches or high spots, you can start with a higher grit, such as 600-grit, and then switch to a finer grit for a smoother finish.
  • Sand with a Circular Motion: When sanding plastic, always use a light touch and work in a circular motion. This will help prevent scratches and ensure an even finish. You can use a DA sander for larger, flat surfaces, or a sanding block for more detailed work. Continue sanding until you achieve a dull finish, with no shine remaining on the surface.
  • Remove Sanding Residue: After sanding, use a dry brush or a tack cloth to remove any debris or residue from the surface. You can then wipe the surface with a damp cloth to ensure it is free of any remaining dust or particles.
  • Address Deep Scratches or Imperfections: If your quad parts have deep scratches or imperfections, you may need to use a filler or putty to create a smooth surface. Sand the filler once it has dried to ensure a seamless finish. For very rough surfaces, you may need to repeat the sanding process, progressing through finer grits of sandpaper until you achieve the desired smoothness.
  • Prepare for Priming: Once you are satisfied with the smoothness of the surface, you can prepare for the priming step. Some sources recommend wiping the plastic with alcohol or mineral spirits to remove any remaining oils or residue that may interfere with paint adhesion. This step is especially important if you plan to use a plastic adhesion promoter or primer.

Remember, the key to successful sanding is to take your time and work in a well-ventilated area. Always wear the appropriate safety gear, including gloves and goggles, when working with power tools or chemicals. By following these steps, you will create a smooth, sanded surface that is ready for priming and painting.

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Priming the plastic

Painting plastic can be tricky because, unlike wood, it is not a porous material. This means the paint has little to stick to, and it tends to drip, pool, and blotch; once dried, it quickly peels off. However, with the right amount of preparation, you can paint plastic successfully.

Firstly, clean the plastic surface with mild dish soap and warm water to remove any surface dirt. For a previously painted item, use it dry first to remove any loose or flaking paint. Then, go over it with soapy water to remove any remaining dirt. If the item has mildew or algae, you may need to scrub harder.

Next, sand the plastic with fine-grit sandpaper to create a rough surface for the paint to adhere to. This is especially important if the plastic surface is too glossy, as paint does not stick well to glossy surfaces. You can use a circular motion to sand, and be sure to sand until the surface has a matte finish. Then, wipe down the plastic with alcohol or mineral spirits to remove any remaining oils that might prevent the paint from sticking.

Now, you are ready to prime the plastic. Choose a primer that is designed for use with plastic, as regular primers do not always bond well with plastic. Spray-on primer is the easiest to use, but you can also get brush-on primer. Before spraying, practice your technique on a scrap of cardboard. Keep the can about 12 inches from the surface and use long, sweeping dusting strokes, spraying across and past the surface in a back-and-forth motion. Do not stop at the edge, as paint will build up anywhere you pause. Apply a light coat, then wait for the manufacturer's recommended time before applying another dusting coat. It is usually recommended to wait about 25 minutes between coats, and most projects will require two to three light coats. Allow the primer to dry completely before proceeding.

Once the primer is dry, you can begin to paint.

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Painting the plastic

Firstly, you need to ensure your plastics are in good condition. Give them a thorough wash with a degreaser/soap or a specialist plastic cleaner to ensure they are free of any chemicals, dirt, or debris that might interfere with your paint. You should apply a generous amount of cleaner and let it sit for 20 minutes before wiping it off.

The next step is to sand the plastic to remove the shiny surface layer. This will help the paint stick. Use 180-220 grit sandpaper and gently sand all the surfaces to be painted. You can use a DA sander for this. Then, wipe the whole surface down with a pre-paint wax and grease remover.

Now you are ready to prime the plastic. Cover the entire surface with a plastic adhesion promoter or a primer designed for use on plastic. You will need to let the primer dry, which usually takes 4-6 hours. Once dry, sand the primer with 120-220 grit sandpaper. You can then apply a putty to fill in any dents or imperfections.

The final step is to paint your quad. Spray paint is the best option for painting plastic, and you should look for paints specifically designed for use on plastic, such as Krylon Fusion. Apply an even layer of paint, ensuring you don't apply too much in one area. Let the first coat dry, then apply a second coat. You can then sand the paint with 400 grit sandpaper and apply a clear coat for a smooth, clear finish.

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Applying a clear coat

To begin the process of applying a clear coat, it is essential to clean the plastic surface thoroughly. Use a degreaser or soap to ensure the removal of any oils, dirt, or debris that could contaminate the clear coat. A lint-free rag or paper towel can be used for this step, along with a good cleaner like PRE Paint Prep. For more stubborn contaminants, consider using a methylene chloride-based paint remover, but always wear proper safety equipment, including gloves and goggles, when working with such chemicals.

The next step is to abrade the surface lightly. This step helps create a rougher surface for the clear coat to adhere to. Use a scuff pad or fine-grit sandpaper (around 180-320 grit) to gently scuff the surface until it is smooth and free of any shine. It is important not to put any major scratches on the surface, so avoid using a woven scuff pad if you are concerned about scratching.

After abrading, wipe down the surface with a pre-paint wax and grease remover. This step will ensure that any remaining contaminants or residues are removed before applying the clear coat. Once the surface is thoroughly cleaned and prepared, you may want to apply an adhesion promoter, especially if the plastic is flexible or will experience a lot of movement.

Now you are ready to apply the clear coat. Start with light to medium coats, ensuring that the first coats are not applied too heavily. Allow each coat to dry before applying the next, building up the thickness gradually. For flexible plastics, consider adding a small amount of flex agent to the final coats, following the manufacturer's instructions for mixing ratios and application methods.

Finally, allow the clear coat to cure completely before handling or exposing the plastic quad parts to any significant use. This will ensure that the clear coat is fully effective and will help prevent any flaking or peeling.

Frequently asked questions

First, make sure your quad parts are in good condition and clean. Wash the plastic with a degreaser/soap or a plastic cleaner, and remove any decals. Next, sand the plastic with 180-220 grit sandpaper to remove the shine and create a rough surface for the paint to stick to. You can then apply a plastic adhesion promoter or primer to further help the paint adhere.

The best paint for ATV plastic is typically spray paint, acrylic, or enamel. Common brands that make paints specifically for plastic include Krylon, Valspar, and Rust-Oleum.

Make sure the area you are working in is well-ventilated and protected with a drop cloth. Wear old clothes and a mask to protect yourself from fumes and paint. Apply an even layer of paint to the quad part, being careful not to apply too much in one area to avoid runs. Let the first coat dry, then apply a second coat.

Once the paint is dry, you can sand it with 400 grit sandpaper and apply a clear coat to protect the paint and give it a smooth, clear finish.

Keep your quad in the shade to prevent the plastic from fading. Wash your quad regularly to remove any dirt or debris, and avoid using a buffing tool on the plastic, as this can damage the paint.

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