
ATV fenders are typically made of polyethylene (PE) and polypropylene (PP) materials. These are considered oily or olefinic plastic materials, allowing dirt and mud to wash off easily and preventing paint or adhesives from fusing. Other components such as footwells, fender flares, and inner fender panels are often made of ABS (Acrylonitrile Butadiene Styrene). When repairing cracked or damaged ATV fenders, it is essential to know the type of plastic to ensure a durable repair. For example, polypropylene is more heat resistant and has a higher melting point than polyethylene, but it becomes brittle below 0°C.
| Characteristics | Values |
|---|---|
| Plastic type | Polyethylene (PE), Polypropylene (PP), LDPE, HDPE, TPO |
| Dirt and mud | Washes off |
| Paint and adhesives | Does not fuse |
| Repair | Polyvance ATV Plastic Welder Kit |
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What You'll Learn
- ATV fenders are typically made of polyethylene and polypropylene
- Polypropylene is the most common plastic used in ATV body panels
- Polypropylene and polyethylene are considered oily or olefinic plastics
- HDPE is a type of polyethylene with longer molecular chains and a higher melting point than LDPE
- ATV fenders can also be made of thermoplastic olefinic elastomer (TPO)

ATV fenders are typically made of polyethylene and polypropylene
Polyethylene, also known as PE, is a common type of plastic used in ATV fenders. It comes in two main varieties: high-density polyethylene (HDPE) and low-density polyethylene (LDPE). HDPE is tougher and more abrasion-resistant than LDPE, but LDPE's lower melting temperature makes it easier to use as a filler rod for repairing cracks or holes. LDPE also typically results in better-quality welds for these types of repairs.
Polypropylene, or PP, is another frequently used material for ATV fenders. It is often used in combination with talc, as in the case of PP+20Talc, which contains 20% talc. Polypropylene is also used in the form of welding rods for repairing cracks in ATV fenders.
In addition to polyethylene and polypropylene, other materials used for ATV fenders include thermoplastic olefinic elastomer (TPO), carbon fibre, and proprietary thermoplastics. TPO is a type of thermoplastic that is resistant to chemicals and provides a combination of rigidity and flexibility, making it suitable for withstanding the demands of ATV riding.
The choice of material for ATV fenders depends on various factors, including the specific application, desired characteristics, and ease of repair. While polyethylene and polypropylene are commonly used, other materials like TPO and carbon fibre offer distinct advantages for certain applications, contributing to the overall durability and performance of ATVs in diverse terrain conditions.
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Polypropylene is the most common plastic used in ATV body panels
While polypropylene is the most common plastic used in ATV body panels, polyethylene (PE) is also frequently used. LDPE (low-density polyethylene) is easier to work with than HDPE (high-density polyethylene) due to its lower melting temperature. However, HDPE is tougher and more abrasion-resistant, so it may be preferred for certain applications. In addition to polypropylene and polyethylene, ATV fenders can also be made from thermoplastic olefinic elastomer (TPO), which is resistant to chemicals and UV radiation.
The type of plastic used in ATV fenders and body panels is important not only for maintenance and repair but also for performance and safety. ATVs are designed to handle a variety of terrains and conditions, so the durability and flexibility of the plastic used in their construction are crucial. Additionally, the ability to repair cracks and damage through plastic welding can extend the lifespan of ATVs and reduce maintenance costs.
When repairing cracks in ATV fenders, it is important to identify the type of plastic used. Polypropylene and polyethylene are the most common types of plastic used in ATV fenders, and both can be repaired using plastic welding techniques. However, different types of plastic require specific welding rods and techniques, so accurate identification is necessary for a successful repair.
Overall, polypropylene is the most common plastic used in ATV body panels due to its durability, ease of maintenance, and repairability. Other plastics used in ATV construction, such as polyethylene and TPO, offer their advantages and are chosen based on the specific requirements of the application. The variety of plastics used in ATVs contributes to their versatility and performance in a range of off-road and farming applications.
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Polypropylene and polyethylene are considered oily or olefinic plastics
ATV fenders are typically made from polyethylene (PE) and polypropylene (PP) materials. Polypropylene and polyethylene are considered oily or olefinic plastics. This means that dirt and mud can easily wash off, and it also prevents paint or adhesives from fusing.
Polyolefins are a type of polymer derived from a small set of simple olefins (also known as alkenes). Polyethylene and polypropylene are the most common polyolefins. They are also the most ubiquitous plastics in the world, with variations of each used in a wide range of products. Polyethylene is the more widely produced and available of the two. Polypropylene may have limited availability in certain regions.
Polyolefins are named after Nobel laureates Karl Ziegler and Giulio Natta. The catalysts are prepared by treating titanium chlorides with organoaluminium compounds, such as triethylaluminium. Polyolefin properties range from liquid-like to rigid solids and are primarily determined by their molecular weight and degree of crystallinity. Polyolefin surfaces are not effectively joined together by solvent welding because they have excellent chemical resistance and are unaffected by common solvents. They can be adhesively bonded after surface treatment or with some superglues.
Polypropylene is a polymer composed of repeated propylene monomer units (-CH2-CH(CH3)-) derived from petroleum. It is well known for its high strength and stiffness. Polypropylene is both strong and flexible, highly heat resistant, and lightweight. It is used in drinking straws, food containers, and reusable water bottles, among many other things. Polypropylene is commonly used in car bumpers, interior trims, and other components where TiO₂ is added to improve UV stability.
Polyethylene is created through the polymerization of ethylene. It is the most common type of plastic and is used in everything from plastic bags and bottles to insulation for electrical cables and water pipes. It is also used in ATV fenders, as mentioned earlier.
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HDPE is a type of polyethylene with longer molecular chains and a higher melting point than LDPE
Polyethylene (PE) is the most popular plastic in the world and is used in a wide range of applications, from supermarket bags to bulletproof vests. It comes in several forms, but the most common types are high-density polyethylene (HDPE) and low-density polyethylene (LDPE). Both materials are derived from PE and have similar properties, but they have different molecular structures and unique characteristics, making them suitable for different applications.
HDPE is a type of polyethylene with a linear structure, which means its molecules are tightly packed together. This gives HDPE a higher density and tensile strength than LDPE. The proximity of its molecules also makes HDPE a very strong material with excellent stiffness, impact resistance, and chemical resistance. Additionally, HDPE is UV-resistant, versatile, and simple to work with, making it a popular choice for outdoor applications such as playground equipment and construction. It is also used in fuel tank manufacturing and car bodies due to its lightweight properties.
LDPE, on the other hand, is a branching variety of polyethylene, meaning its molecules are arranged more loosely. This results in a lower density and tensile strength compared to HDPE. Despite this, LDPE is still a strong and robust material with excellent impact resistance, stain resistance, electrical insulating properties, and water resistance. LDPE is commonly used in consumer products such as grocery bags, plastic film, and food and beverage containers. It is also suitable for cable cleats and pneumatics due to its flexibility and high-impact strength.
In terms of limitations, LDPE is more prone to stress cracking than HDPE and has lower heat resistance. It is highly permeable to gases and highly flammable, which limits its use in high-temperature applications. However, its low melting point makes it ideal for heat sealing and injection molding. HDPE, with its higher melting point, can be machined using CNC technology to achieve precise tolerances.
When it comes to ATV fenders, both HDPE and LDPE are mentioned as possible materials. Some sources indicate that ATV fenders typically consist of polyethylene (PE) and polypropylene (PP) materials. Polypropylene is another type of plastic that is commonly used in ATV body panels and fenders. It is known for its weldability and impact resistance, making it suitable for repairs and protecting ATV components.
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ATV fenders can also be made of thermoplastic olefinic elastomer (TPO)
ATV fenders are typically made of polyethylene (PE) and polypropylene (PP) materials. Polypropylene and polyethylene are considered oily plastic materials, or olefinic plastic materials, which allow dirt and mud to wash off easily and prevent paint or adhesives from fusing. However, ATV fenders can also be made of thermoplastic olefinic elastomer (TPO).
Thermoplastic olefinic elastomer (TPO) is a type of thermoplastic that exhibits the elastic properties of rubber at specific temperatures. TPO combines the benefits of rubber with the processing ease of thermoplastics. It is a durable and versatile material that can be easily moulded into various shapes and sizes, making it suitable for ATV fenders. TPO is also resistant to chemicals and UV radiation, which can help maintain the integrity of the ATV fenders over time, even when exposed to harsh chemicals or prolonged sunlight.
The use of TPO in ATV fenders offers several advantages. Firstly, TPO is known for its impact resistance, which can help the fenders withstand impacts from rocks, debris, and other obstacles encountered during off-road riding. This impact resistance also contributes to the overall durability of the fenders, reducing the likelihood of cracks, scratches, or other types of damage. Secondly, TPO's flexibility allows it to absorb vibrations and provide a smoother riding experience. This can enhance the comfort of the rider, especially when navigating rough terrain.
Additionally, TPO is lightweight, which aligns with the design goals of ATV manufacturers to reduce vehicle weight and improve overall performance. Lighter fenders can contribute to better handling, acceleration, and fuel efficiency. The lightweight nature of TPO also makes it easier to transport and install the fenders, reducing the overall effort required for ATV assembly and maintenance.
In summary, ATV fenders can be made of thermoplastic olefinic elastomer (TPO), which offers a range of benefits, including durability, chemical and UV resistance, impact resistance, flexibility, and lightweight construction. These properties of TPO contribute to the performance, customisation, and longevity of ATV fenders, making them a viable alternative to traditional polyethylene and polypropylene materials.
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Frequently asked questions
ATV fenders are typically made of thermoplastics such as polyethylene (PE) and polypropylene (PP). Polyethylene comes in two forms: LDPE (low-density polyethylene) and HDPE (high-density polyethylene).
LDPE has a lower melting temperature, making it easier to use as a filler rod than HDPE. HDPE is "tougher" and more abrasion-resistant than LDPE, but the difference is minimal when doing repair work.
Other types of plastic used in ATV fenders include thermoplastic olefins (TPO) and ABS (Acrylonitrile Butadiene Styrene). ABS is a thermoplastic that offers excellent impact resistance and is often used in more exposed areas of an ATV.
Polyethylene and polypropylene are considered oily or olefinic plastic materials, which allow dirt and mud to wash off easily. These plastics also prevent paint or adhesives from fusing, making them easy to work with during repairs.
Polypropylene (PP) has a higher melting point and is more heat resistant than polyethylene (PE). However, PP becomes brittle below 0°C and is vulnerable to degradation from UV radiation in sunlight. PP is also more permeable to moisture, but this difference is negligible in ATV fender applications.











































