Ethan Clarke
Painting quad plastics is a long and challenging process, but it can be done well if you are handy and have the time and patience. The key to success is proper preparation. First, you need to clean the plastic and remove any decals. Next, sand the entire surface to create a rough texture that will help the paint adhere. After sanding, scrub the plastic with a suitable product and a scuff pad to remove any remaining contaminants. Then, sand again with finer-grit sandpaper to remove any spots you missed. After that, you can apply a plastic primer and then the paint itself. Finally, you can apply a clear coat to protect your paint job and add shine.
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What You'll Learn
Removing the plastic from the quad
Firstly, it is important to gather the necessary tools and materials. You will need safety equipment, including gloves and goggles, to protect yourself from chemicals and debris. It is also recommended to have a range of sandpaper grits available, such as 180, 320, 600, and 800 grit sandpaper, to tackle different stages of the process. Steel wool, dish soap, and a blowtorch with a flame spreader will also be required for this project.
Once you have gathered your tools and materials, the next step is to remove the plastic from the quad. This may involve unscrewing or detaching the plastic parts from the frame of the quad, ensuring that you are careful not to damage the plastic or any surrounding components. It is advisable to take photos or make notes on the disassembly process to facilitate easier reassembly later on.
With the plastic removed, you can now begin the cleaning and preparation process. Start by removing any decals or stickers from the plastic surface using a safe method that won't damage the underlying material. A product like methylene chloride-based paint remover can be used for this step, but always wear proper safety gear as these chemicals can be hazardous. After removing the decals, clean the plastic thoroughly with dish soap and steel wool. This step ensures that any dirt, grease, or contaminants are eliminated, providing a clean surface for the paint to adhere to.
The next step is to address any scratches or imperfections on the plastic surface. Using sandpaper, wet sand any deep scratches or high spots, starting with a finer grit and working your way up to a higher grit if needed. This process will help smooth out the surface and create a uniform texture. After sanding, you can use a blowtorch with a flame spreader to lightly go over the plastic. This step helps prepare the plastic for the upcoming paint application. However, always follow safety precautions when working with a blowtorch, keeping it away from flammable materials, children, and animals.
By following these steps, you will have successfully removed the plastic from your quad and prepared it for the painting process. Remember to take your time, work in a well-ventilated area, and always put your safety first when handling chemicals and tools.
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Cleaning the plastic
To paint quad plastics, the first step is always to clean the plastic. This is because the fenders are often subjected to the elements, which can cause a thin "crust" to form on the surface. Here is a step-by-step guide to cleaning the plastic of your quad before painting:
Firstly, use soap and water to wash the plastic. This is a simple yet effective way to remove any surface-level dirt and grime. Next, you will need to remove any mould release agents. These are chemicals that are used in the manufacturing process of plastics to make it easier to remove the plastic part from its mould. You can use a product like brake cleaner or paint thinner to degrease the plastic and remove any remaining chemicals.
After this, you should inspect the plastic for any scratches, scuffs, or remaining "crust". You can then use sandpaper to sand down the entire surface of the plastic, removing any imperfections and creating a smooth surface. It is recommended to use 180-grit sandpaper for this initial sanding process.
Once you have sanded the plastic, you should scrub it with a plastic cleaner, such as Scuff Magic, and a red scuff pad. This will help to remove any water-soluble contaminants and any remaining dirt or chemicals that may have been ground into the plastic during the previous steps.
Finally, you can sand the plastic again with 180-grit sandpaper to remove any spots or "crust" that you may have missed the first time. You can then sandblast the plastic with 80-grit aluminum oxide to ensure that the surface is completely smooth and free of any imperfections before painting.
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Sanding the plastic
Step 1: Remove the Plastic
Start by removing the plastic parts that you plan to paint. This will make the sanding process easier and more effective. Ensure you also remove any decals or stickers on the plastic, as they can interfere with the sanding and painting process.
Step 2: Clean the Plastic
Before you begin sanding, it's crucial to clean the plastic thoroughly. Use a mild soap or a plastic cleaner specifically designed for this purpose, such as Polyvance plastic cleaner. This step will remove any dirt, grease, or grime that may hinder the sanding process and paint adhesion.
Step 3: Initial Sanding
Once the plastic is clean and dry, start sanding the entire surface with 180-grit sandpaper. This initial sanding step will help remove any thin "crust" that may have formed on the plastic due to sun exposure and other elements. It will also create a rough texture for the paint to grip onto.
Step 4: Scrub and Clean Again
After the initial sanding, scrub the plastic with a scuff pad and a plastic prep product, such as Scuff Magic. This step will help remove any remaining contaminants and ensure a clean surface for painting. You can also use acetone to remove surface oil and dirt, but be cautious as it can melt the plastic if it puddles.
Step 5: Sand Again
Repeat the sanding process with 180-grit sandpaper to address any spots or "crust" that you may have missed during the initial sanding. This step ensures that the entire surface is uniformly sanded and ready for the next steps.
Step 6: Sandblasting
For a more comprehensive preparation, consider sandblasting the plastic with 80-grit aluminum oxide. Sandblasting will create a more aggressive texture on the plastic, providing an even better surface for the paint to adhere to.
Step 7: Fine Sanding
If you want an ultra-smooth finish, you can use finer grit sandpaper, such as 320-grit or 600-grit, for a final sanding step. This will help create a smoother surface, but keep in mind that it may require more coats of paint to achieve full coverage.
Remember, always wear the appropriate safety gear, including gloves and goggles, when sanding and working with chemicals. Take your time during the sanding process, as it is crucial for achieving a high-quality and durable paint job on your quad plastics.
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Applying primer
Firstly, it is crucial to select the right type of primer. An automotive plastic primer is specifically designed for this purpose and should be sourced from a reputable automotive paint supplier. This type of primer is formulated to flex and adhere effectively to plastic surfaces. It is worth noting that while these primers provide some flexibility, they will still crack if over-flexed.
Before applying the primer, ensure that the plastic surface is thoroughly cleaned and prepared. This involves removing any previous coatings, decals, or contaminants that may hinder the adhesion of the primer. Use a paint pre-cleaner or a mild solution like dish soap and steel wool to clean the plastic. It is important to wear proper safety equipment, including gloves and goggles, during this process.
Once the surface is clean, it's time to sand the plastic. Sanding creates a rough texture that enhances the adhesion of the primer. Use sandpaper with a suitable grit size, such as 180 grit or 600 grit, to sand the entire surface evenly. Pay extra attention to any deep scratches or high spots, using a finer grit size to smooth them out. After sanding, it is recommended to clean the surface again to remove any dust or residue.
Now, you can begin applying the primer. Choose a high-build waterborne primer surfacer, as this will fill in any sand scratches and provide a smooth base for the paint. Apply two heavy coats of the primer, allowing sufficient time for the first coat to flash off before applying the second. Make sure the primer dries completely between coats.
After the primer has dried, you may notice an orange peel finish, which is common with high-build primers. To achieve a smoother surface, sand the primed area with 320-grit sandpaper. This type of primer sands easily, so take your time to get a uniform finish. If there are any low spots or imperfections, fill them with a suitable product, such as Putty Flex.
By following these steps, you will have successfully applied the primer to your quad plastics, creating a solid foundation for the paint to adhere to. Remember that proper preparation and attention to detail are key to achieving a durable and high-quality finish.
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Painting the plastic
Painting quad plastics can be a long and challenging process, but it is possible to achieve a quality, lasting finish. The key to success is proper preparation.
First, ensure your work area is well-ventilated and protected. Spray painting is best done outside, and you should put down a tarp, plastic sheet, or cardboard to protect the surrounding area from paint.
Next, clean the plastic. Use a scrub brush to remove any dirt, flaking paint, mildew, or algae. Then, use a wax and grease remover, or dish soap and water, to cut through any remaining grease.
Once the plastic is clean, it needs to be scuffed to create a surface that paint can adhere to. You can use red scuff pads or fine-grit sandpaper for this. Sand the entire surface until it is no longer shiny, and be sure to get into any small grooves and recesses. After scuffing, wipe down the surface again to remove any remaining dust or oil.
Now, you need to apply a primer. A plastic-specific primer will help the paint adhere better and provide a more durable finish. Spray the plastic with a bonding primer or epoxy primer and allow it to dry completely before moving on to the next step.
Once the primer is dry, you can start spray painting with your final colour. Hold the can 8-12 inches away from the plastic and tilt it down at a 45-degree angle to spray light coats. Allow proper drying time between coats, as per the paint directions.
Finally, allow the paint to cure for several days before using the quad. If there are any rough spots, use extra-fine sandpaper to gently smooth them out, then wipe away the paint dust with a dry and then a wet cloth.
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Frequently asked questions
Krylon Fusion is a good paint option for quad plastics as it is a plastic etching paint that melts into the plastic to form a strong bond.
First, remove the plastic from the quad. Next, remove any decals and clean the surface with dish soap and steel wool. Then, wet sand out any deep scratches or high spots with 600-grit sandpaper. After this, wet sand the entire fender with 600-grit sandpaper and mineral spirits.
Using a flame spreader on a blowtorch, lightly go over the plastic. Then, paint the surface within an hour of the flame treatment.
Apply 4-6 light but wet coats of paint. Allow a few minutes between each coat.
It is important to let the paint dry completely. The paint will dry to the touch in 30 minutes or less, but it is best to leave it undisturbed for longer to ensure it sets properly.
