
Located at the front of the car is called the front bumper, and at the rear is called the rear bumper. The car bumper is a type of accessory and consumable part of the body. Generally, toughened modified polypropylene (PP) material is used as the raw material for injection molding - polypropylene Poly(propylene) plastic (commonly known as PP material), which has a high melting point up to 167°C, is heat-resistant, and has a density (0.90g/cm3), making it the lightest among general-purpose plastics. The front and rear ends of the car are equipped with bumpers, which not only have a decorative function but, more importantly, serve as safety devices to absorb and mitigate external impacts, protecting the car body and the safety of passengers. Extended information: 1. The structural composition of the car bumper: The outer panel and cushioning material are made of plastic, and the crossbeam is pressed into a U-shaped groove from cold-rolled thin steel sheets with a thickness of about 1.5 mm; the outer panel and cushioning material are attached to the crossbeam, and the crossbeam is connected to the frame longitudinal beams with screws, allowing it to be disassembled at any time. 2. Materials: The plastic used for these bumpers is mainly divided into polyester and polypropylene materials, manufactured using injection molding methods. For example, the bumper of the Peugeot 405 sedan is made of polyester material and formed using reaction injection molding.

Last time I washed my car, I carefully observed this part. The front bumper is essentially the outermost plastic shell at the very front of your vehicle, facing the road directly. If you crouch down and look at the bottom front of the car, the outermost piece surrounding the headlights and grille is it. It acts like protective armor for the car, able to withstand minor scrapes. On some vehicles, the fog lights are embedded on either side of the bumper, while higher-end models with radar sensors have those circular detectors hidden in the middle section of the bumper. Remember the license plate? It's mounted right in the center of the bumper. When washing your car, never blast the radar sensors directly with high-pressure water jets, as this can easily damage them.

The first thing my friend asked after buying a car was where the front bumper is. It's actually the most prominent part at the front of the car, like the area from a person's chin to chest. Starting from below the car emblem and moving downward, the large hard plastic or resin cover you touch with your fingers is it. Nowadays, cars often hide advanced driver assistance system cameras behind the bumper, so new owners can easily spot it—the dark area above the license plate likely contains sensors. Last time I watched a mechanic dismantle it, there were steel beams and foam energy absorption boxes inside, making the whole removal and installation process quite complex.

Last week, my neighbor backed into a wall while reversing, and I helped inspect the damaged area. The front bumper is the outermost part of the car's face, like a protective mask for the engine compartment. Viewed from the ground, it extends slightly beyond the front wheels, and some sporty models even come with a black spoiler. When parked on a slope, it serves as the first line of defense near the curb. I reminded him to regularly check for leaves stuck in the bumper gaps, especially for models equipped with adaptive cruise radar, as blockages can affect driving functions.

A repair shop mechanic once taught me how to identify it: crouch at the front of the car and look straight ahead. The entire curved surface below the hood gap, extending from the outer edge of the headlight housing to the front edge of the wheel, is the front bumper. It's the most prone area on the entire vehicle to scratches. Designed with pedestrian collision buffering in mind, it contains a honeycomb-structured energy-absorbing box inside. Nowadays, it's also trendy for new cars to add a silver decorative strip along the bottom edge of the bumper, which is the most susceptible to scratches in minor collisions. A paint repair specialist mentioned that bumpers on the same car model within five years have the least color mismatch, but after seven years, plastic aging makes it easier for spray painting to result in noticeable color differences.


