What material is a car bumper made of?

[CarlosFitz]

Car bumpers are mostly made of polypropylene plastic, primarily located at the front (front bumper) and rear (rear bumper) of the vehicle. In addition to maintaining their original protective function, front and rear bumpers also aim for harmony and unity with the body shape of the car, as well as pursuing lightweight design. Bumpers serve purposes such as safety protection, vehicle decoration, and improving the vehicle's aerodynamic characteristics. From a safety perspective, they provide cushioning during low-speed collisions, protecting the front and rear body of the car, and can offer some protection to pedestrians in accidents. From an aesthetic standpoint, bumpers are decorative and serve as important components in enhancing the appearance of the car.

[BrookeRose]

Most car bumpers are made of plastic. For example, the car I recently bought uses a material called polypropylene, which looks hard but feels elastic to the touch. The salesperson said this design is for lightweight purposes, absorbing impacts during low-speed collisions to protect pedestrians and the vehicle, while also helping to save some money on fuel costs. After driving for a few months, I indeed feel the car is lighter and saves some fuel expenses. However, plastic is prone to scratches. Last time when I scraped against a wall in the parking lot, it left a mark. Getting a new one at the repair shop only cost a few hundred, which is quite cheap—much more practical than rust-prone metal ones. Overall, plastic bumpers are a mainstream choice due to their low cost and quick repairs, but it's still important to avoid sharp objects scraping the paint to prevent peeling and maintain aesthetics.

[OHadley]

Modern car bumpers are often made of engineering plastics such as polycarbonate or composite materials. From my experience, these synthetic materials are lightweight and easy to install, providing impact absorption during collisions to reduce damage and lower repair costs. In the past, when I was involved in a rear-end collision with a car that had a metal bumper, the repairs were expensive and prone to rust. Nowadays, plastic bumpers offer better flexibility, enhancing safety in accidents, especially for pedestrian protection. The downside is slightly lower durability, as they may soften or deform in hot weather, requiring regular checks to ensure fasteners remain secure. Overall, plastic bumpers contribute to improved vehicle efficiency and energy savings, making them worth promoting.

[ODiana]

From the perspective of family car use, bumpers are generally made of hard plastic. When I take my kids out, I often check if the plastic at the front of the car is soft and not sharp to avoid injuring children. Avoid using high-pressure water when washing the car, as it can easily leave marks. The lightweight material helps the car save fuel, reducing expenses, and makes maintenance simpler.