The rear bumper of the car is scratched and used without touch up paint?
If you don't care very much, don't try to make up the paint. First, the paint done later is not as good as the original one. It can't be seen in a short time. There will be obvious color difference after one or two years. Second, this time a scratch has occurred, and the scraping may occur next time. You can make up the next time after the area is large.
The rear bumper of the car is a safety device that absorbs and mitigates external impact and protects the front and rear of the car body.
Many years ago, the front and rear bumpers of the car were stamped into channel steel with steel plates, riveted or welded together with the frame rails, and had a large gap with the body, which looked very unattractive.
With the development of the automotive industry and the extensive application of engineering plastics in the automotive industry, the rear bumper of the car has also entered the path of innovation as an important safety device.
In addition to maintaining the original protective function, the front and rear bumpers of today's cars must pursue harmony and unity with the shape of the car body, and pursue their own lightweight.
The outer plate and the cushioning material are attached to the beam, and the beam is screwed to the frame longitudinal beam and can be removed at any time. The plastic used for this plastic rear bumper is generally made of two types of polyester and polypropylene materials by injection molding.
There is also a kind of plastic called polycarbonate in foreign countries. It is infiltrated into the alloy composition and is alloy injection molding. The finished rear bumper not only has high strength rigidity, but also has the advantage of being weldable, and has good coating performance. , the use of more and more cars.
The plastic rear bumper has strength, rigidity and decoration. From the safety point of view, the car can play a buffering role in the event of a collision, and protect the front and rear body. From the appearance, it can be naturally combined with the car body. Integral, with good decoration, has become an important part of the decorative car exterior. First, in terms of weight, the plastic rear bumper is lighter than the iron or other material's rear bumper, which also reduces the weight of the vehicle. Many people have had a misunderstanding for many years, thinking that the heavier and safer the car, it is not the case! So now many automakers are losing weight on their cars, the weight is down, and the fuel consumption is naturally reduced.