Why are the front and rear bumpers all plastic?
Easy car design and production of automobile production has mold, in addition to the body can use high strength materials, many parts will be as far as possible the use of light weight, corrosion resistance, easy processing, easy molding, easy maintenance and replacement of materials.
If the bumper is plastic, the corrosion resistance will be better.
Considering the actual use, the bumper is made of elastic material and has good impact resistance. This means that the general small knock small touch, it can easily dissolve, and even if the paint off, the difficulty of spraying is not great.
Based on pedestrian safety considerations, the reason is simple
