Plastic bumper covers are typically made of which material?

• A. Polyolefin or Urethane
• B. Aluminum
• C. Steel
• D. Glass

Answer: (A)

Modern bumper covers are plastic because they balance lightweight, moldability, impact absorption, and cost. The outer shell is typically made from polyolefins—such as polypropylene or polyethylene—or from urethane. These materials are easy to mold into complex shapes, hold paint well, and resist cracking better than many other plastics, while keeping production costs low. They also keep the weight down compared to metal covers. Behind this plastic face is a rigid bumper beam (usually steel or aluminum) that provides the main structural protection. Metal bumpers were more common in the past, but they’re heavier and can transfer more crash energy, which is why plastic covers are standard today. Glass would be inappropriate because it’s brittle and shatters.