
Sea-Doo's Polytec material is a glass fiber-reinforced polypropylene material that is used to make watercraft hulls. While it is durable, it is not indestructible and can be damaged by cracks and breaks. To restore Sea-Doo Spark plastic, one must first clean the plastic and then use products such as the Polyvance glass-reinforced welding rod, fillers, adhesion promoters, and texture paints to restore its factory appearance. Additionally, it is important to prevent colour fading by using products like Aerospace 303 and XPS UV protector.
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What You'll Learn

Sand out defects
To restore your Sea-Doo Spark plastic, you can sand out defects and apply heat to make it look new again. This process can help restore heavily faded and sun-damaged surfaces.
Before you begin the restoration process, ensure the watercraft has been properly cleaned. Heavy scum, algae, waterlines, and rust can build up if the boat has been stored in water for long periods. Use a product like XPS Sea-Doo Hull Cleaner to remove tough stains and grime. For lighter waterline stains, XPS Degreaser is a fast and simple solution. Spray it directly onto the surface, let it sit, wipe with a cloth or soft-bristled brush, and then rinse with water.
Once the plastic surface is clean, you can start sanding out the defects. Start by identifying the areas that need to be sanded, such as scratches, scuffs, or discoloured areas. Choose the appropriate grit sandpaper for the job, typically starting with a finer grit and working your way up to a coarser grit if needed. Wrap the sandpaper around a sanding block or use a sanding pad to help achieve a flatter, more consistent surface. Sand with the grain, if applicable, and work in the direction of the scratch or defect. Apply light, even pressure and sand until the defect is no longer visible.
After sanding, you can apply heat to the sanded areas to help smooth out the plastic and create a uniform finish. Be careful not to overheat the plastic, as it can start to wrinkle. Once the plastic cools, inspect the sanded areas and repeat the process if necessary.
Finally, to protect your Sea-Doo Spark plastic and maintain its restored appearance, consider using a sealant like XPS Marine Spray Wax with Polymer. This will help prevent algae, rust, and other water contaminants from affecting the surface. Spray it directly onto the surface and wipe it with a clean, dry microfiber cloth.
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Apply heat to resurface
While there are some suggestions online that you can restore Sea-Doo Spark plastic by applying heat, this is not recommended. Applying heat to plastic can cause permanent damage, making it brittle and prone to cracking. It can also thin out the plastic, weakening its structure and making it more susceptible to damage.
If you decide to apply heat to resurface your Sea-Doo Spark plastic, proceed with extreme caution and be aware of the risks involved. It is a very temporary fix and it is easy to get it too hot and completely ruin the plastic. The type of plastic used in the Sea-Doo Spark, Polytec, is a glass fiber-reinforced polypropylene material. It is a tough material but it is not indestructible and can be cracked or broken if struck with sufficient force.
Before applying heat, ensure that you have cleaned the plastic thoroughly. This will help remove any dirt, grime, or debris that could interfere with the resurfacing process. You can use a plastic cleaner specifically designed for this purpose, such as Polyvance's 1000 Super Prep plastic cleaner.
When applying heat, use a heat gun or another controlled heat source to direct the heat evenly across the surface of the plastic. Be very careful not to overheat the plastic, as this can cause melting or damage. Apply heat in short intervals, monitoring the plastic's response to the heat and adjusting your technique accordingly.
Keep in mind that applying heat to plastic can release toxic fumes, so ensure that you are working in a well-ventilated area and take appropriate safety precautions, including wearing protective gear such as gloves and eye protection.
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Use XPS UV protector
Sea-Doo's Polytec material is a glass fiber-reinforced polypropylene material that is used in the hulls of some Sea-Doo watercraft, including the Spark model. While this material is tough, it is not indestructible and can be cracked or broken if struck with enough force. To restore the appearance of Sea-Doo Spark plastic, you can sand out any defects and apply heat to make it look new again. It is also recommended to seal and paint/clear the plastic after sanding to prevent further damage. Additionally, using a cover when storing your watercraft can help prevent fading caused by exposure to the sun.
To protect your Sea-Doo Spark from the sun's harmful rays and prevent color fading, you can use the XPS UV protector. Here is a step-by-step guide on how to use the XPS UV protector:
- Ensure the surface you want to protect is clean before applying the product.
- Spray the XPS UV protector directly onto the surface.
- Spread the product evenly using a dry and clean cloth.
- Allow the product to penetrate for about five minutes.
- Wipe away any excess product with another cloth.
- Let the product dry for one to two hours.
The XPS UV protector is suitable for non-painted textured surfaces and all soft plastic parts of the Sea-Doo Spark, such as bumpers. It is essential to note that you should not apply the product to hot surfaces, and for added durability, you can let it dry for up to two minutes before wiping.
The XPS UV protector will leave a clean, non-greasy, satin finish on your Sea-Doo Spark, restoring its color and luster. Additionally, its powerful UV blockers will prevent fading and cracking, protecting your watercraft investment. This product is perfect for synthetic and natural rubber and can also be used on fiberglass, gelcoat, and most plastic surfaces.
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Repair cracks with Polyvance welding rod
Sea-Doo's Polytec material is a glass fiber-reinforced polypropylene material that is used for the hulls of several Sea-Doo personal watercraft, including the Spark model. While this material is tough due to the glass fibres embedded in the polypropylene, it can still be cracked or broken if struck with sufficient force. Replacing a cracked hull can be expensive, but with Polyvance's products and techniques, you can make quality repairs.
Polyvance offers one of the largest selections of high-quality plastic welding rods, including the R18 glass-reinforced polypropylene welding rod, which is ideal for repairing cracks in Sea-Doo Polytec hulls. This rod is available in three different profiles: the 02 round rod, the 04 medium ribbon, and the 05 wide ribbon.
To repair cracks with the Polyvance welding rod, the first step is to clean the plastic with a plastic cleaner, such as Polyvance's 1000 Super Prep or EcoPrep plastic cleaner. Next, use coarse sandpaper or a 50-grit Roloc disc to roughen up the plastic surface around the crack. Create a gradual bevel around the crack using a die grinder, and then use the sandpaper or Roloc disc to roughen up the beveled area.
Now you're ready to start welding. Melt the surface of the welding rod with an airless plastic welder and stick it to the plastic, forcing it down into the crack. Fill the crack with the melted welding rod to create a seal. Continue laying the filler rod down, making sure to smooth it into the sanding scratches and letting the heat do the work. When the entire beveled area is filled, your repair is complete.
Once the repair has cooled, you can pressure test it if desired. You can also sand the repair smooth, but this is not necessary. With the Polyvance welding rod, you can achieve a strong and functional repair that restores the appearance of your Sea-Doo Spark's plastic hull.
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$359.95

Seal and paint/clear
To restore Sea-Doo Spark plastic, you can start by sanding out any defects and applying heat to make the plastic look new again. However, this is only a temporary solution, as the plastic will eventually start to wrinkle as soon as heat is applied. To prevent further damage and deterioration, it is crucial to seal and paint or clear-coat the plastic.
Before sealing, it is essential to clean the plastic thoroughly. Polyvance offers a product called Super Prep plastic cleaner, which can be used to clean the plastic surface and prepare it for the next steps. Once the plastic is clean and dry, you can move on to the sealing process.
Sealing the plastic will help protect it from the elements and prevent further fading, discolouration, or damage. Sea-Doo recommends using their XPS Marine Spray Wax with Polymer as a sealant. This product can be sprayed directly onto the surfaces and wiped with a clean, dry microfiber cloth after a few seconds. For added durability, it is recommended to let the product dry for up to 2 minutes before wiping. This sealant will help protect your Sea-Doo from algae, rust, and other water contaminants.
After sealing, you can consider painting or clear coating the plastic to restore its original appearance or enhance its aesthetics. Polyvance offers various products to help paint polypropylene, including fillers, adhesion promoters, and texture paints. These products can help you achieve the desired colour and finish for your Sea-Doo Spark plastic.
Additionally, regular maintenance and protection are crucial to maintaining the condition of your Sea-Doo Spark plastic. Sea-Doo recommends using their XPS UV protector on non-painted textured surfaces to prevent colour fading from the sun's rays. This product can be sprayed on and spread evenly with a dry, clean cloth. Allow it to penetrate for 5 minutes before wiping away any excess. This will help maintain the appearance of your Sea-Doo Spark plastic and protect it from the damaging effects of UV rays.
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Frequently asked questions
Sand out the defects and apply heat to make it look new again.
Use a cover when not in use, especially if it is going to be left in the dock for a long period of time. You can also use products like Aerospace 303 or XPS UV protector to prevent colour fading.
XPS offers a range of cleaning products for Sea-Doo watercraft, including the XPS All Purpose Cleaner and Degreaser, XPS Sea-Doo Hull Cleaner, and XPS Glass and Multi-Surface Cleaner.
You can repair cracks or holes in the Polytec hull using Polyvance's glass-reinforced welding rod and other products such as fillers, adhesion promoters, and texture paints to restore the factory appearance of the plastic.











































