What materials are car bumpers made of?
1 Answers
Car bumpers are mostly made of plastic, while some older cars may have metal bumpers. Plastic bumpers are generally injection-molded using PP (polypropylene) material, which has a high melting point, strong heat resistance, and is currently the lightest among general-purpose plastics with high corrosion resistance. Below are the functions of bumpers: 1. They absorb and mitigate external impact forces when the vehicle or driver experiences collision forces, acting as a buffer device to protect both people and the vehicle. 2. In addition to maintaining their original protective function, front and rear bumpers also pursue harmony and unity with the vehicle body design while aiming for lightweight construction. 3. Plastic bumpers possess strength, rigidity, and decorative qualities. From a safety perspective, they provide cushioning during collisions to protect the front and rear vehicle body. From an aesthetic standpoint, they integrate naturally with the vehicle body, forming a seamless whole, making them an important decorative component that enhances the vehicle's exterior appearance.