All commercial cars in the world are made of steel. Paint is indispensable for embroidering prevention and beauty. Let's talk about paint.
aboutcarpaint
Car paint is generally baked paint. In the depot, after the frame and shell are welded (sometimes manually repaired), the next process is painting. Generally speaking, the first is the primer. Dip the bare car shell into a syrup-like paint tank, take out the drying primer; then send it to a dust-free workshop to spray the top paint with electrostatic spray paint. Then use a temperature of about 200 degrees to dry. For the more elegant ones, another coat of varnish will be applied. In this way, the paint process is complete. There are several general topcoats: ordinary paint; metallic paint; pearl paint. Needless to say, ordinary paints, resins, pigments and additives. The metallic paint has more aluminum powder; so it looks bright after finishing. For pearl paint, mica particles are added. Mica is a very thin piece of material, so the reflection is directional and has a colorful effect. If it is metallic paint plus a varnish layer, the paint of the car looks very bright and beautiful. In terms of color, white is undoubtedly the cheapest. For example, the world-class brand of red pigment is about 25 times more expensive than the world-class brand of titanium powder; the amount of titanium powder in white paint is about 5 times that of red pigment. Therefore, the cost of red paint for color is 5 times higher than that of white paint. This is why some domestic cars have so few colors: simple and low cost.
No matter what color paint, its pigment will fade in the sun. In fact, not only paint, any colored stuff may fade under the sun. At this time, the additives added in the paint are very important. For example, light stabilizers, antioxidants, etc. Unfortunately, good additives are very expensive. In many cases, the quality of the additives determines how the paint feels. People would definitely think that a certain paint that began to show obvious fading in 2 years is as bright as new paint in 5 years. But in fact, there is no non-fading paint. In many cases, the factory is more concerned about: uniform fading. Try not to make chromatic aberrations appear in different parts of the car.
The paint is the easiest thing to damage when you get a new car. If the car is not washed carefully, the paint will be injured. In fact, even when things are installed on the production line, there are things that damage the paint.
Generally small scratches, there are scars on the paint surface, and the scars are white. That is the paint surface is shaved. There is no need to touch up the paint. Light, use sand wax or wax several times. If it is heavy, just be polished. More serious, you can see the color of the underlying primer (in many cases, the primer is darker). Then, please take another look at the scar. Generally speaking,bumper,rearview mirrorAnd some carsWheel eyebrowThese parts are made of engineering plastics. stainless. Apart from being ugly, there is no big problem. It doesn't matter whether you touch up the paint or not. For other things, touch up the paint, otherwise, even a small damage, the steel plate will start to rust. At that time, even if the paint is touched up, it will be difficult to prevent embroidering.
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