What characteristic allows plastic bumper covers to be reshaped with heat?

The characteristic that allows plastic bumper covers to be reshaped with heat is known as plastic memory. This property refers to the ability of certain types of plastics to return to their original shape after being deformed, provided that the deformation does not exceed their elastic limit. When heat is applied to a plastic bumper cover, the material becomes pliable, allowing it to be reshaped. Once it cools down, it retains the newly shaped configuration, assuming that the new shape stayed within the material's memory capability.

This is particularly important in collision repair, as it allows technicians to restore the bumper cover to its original profile without the need for replacement. Understanding this process is crucial in effective repair techniques, to ensure both functionality and aesthetics of the vehicle post-collision.