How To Choose Car Body Repair Paint For Car Spraying

Car paints are generally baked paints. It will be used in the car spraying baking booth.In the depot, after the frame and shell are welded (sometimes manually repaired), the next step is to paint. In general, the first (high-end cars use phosphatized anti-corrosion technology) is the primer. The light shell is immersed in a syrup-like paint tank, the drying primer is taken out; then it is sent to a clean room and the top paint is sprayed with an electrostatic spray paint process. Then dry it with a temperature of about 200 degrees. Exquisite, there will be a layer of varnish. In this way, the paint process will be completed. There are several kinds of general finish: ordinary paint; metallic paint; pearlescent paint. Ordinary paint does not need to say, resin, pigments and additives. Metallic paint has more aluminum powder; so it looks bright after completion. Pearlescent paint, added mica particles. Mica is a very thin piece of material, therefore, the reflective directionality has a colorful effect. If it is metallic paint and varnish, the paint on the car looks bright and beautiful. In color, white is the cheapest. For example, the world-class brand red pigment is about 25 times more expensive than the world-class brand titanium dioxide, and the amount of titanium dioxide in white paint is about 5 times that of the red pigment. Therefore, the cost of red paint in color is 5 times higher than that of white paint. This is why some domestic cars have so few color varieties: simple and low cost.

    No matter what color of paint, its pigment will fade in the sun. In fact, not only paint, but any coloured stuff may fade under the sun. At this time, it is important to add additives to the paint. Such as light stabilizers, such as antioxidants or something. Unfortunately, good additives are expensive and expensive. Many times, the quality of additives determines how this paint gives a person a feeling. People will surely think that some kind of paint that began to fade significantly in two years is worse than five years. But in fact, there is no indelible paint. Many times, the factory is more concerned with: evenly fade. Try not to make color difference in different parts of the car.

    About touch up

    In the new car, the most vulnerable to damage is paint. Careless car washing, paint will be injured. In fact, even if you put things on the production line, there are things that damage the paint.

    First of all, all places, even in the original factory, after the car is installed, the paint will not use any "original paint!" If the repair shop tells you that they are using "original paint," it must be lying to you. The reason is simple: When it comes to the original painting process, it was said that after baking the paint, it was baked at 200 degrees. With so many parts on the finished car, how many can withstand 200 degrees? Do you dismantle the car again, leaving only the car shell? Refinishing paints use a special refinish paint. Refinishing paint baking temperature is relatively low, 7 and 80 degrees like.

    Secondly, the color of the refinish paint is formulated before the repair. The reason is simple: Your car may have been on for several years, and the paint has started to fade, although you can't see it. If you park outside, the degree of fade in different directions will be slightly different - the relationship of the sun. To match as much as possible with the original color, you can only adjust it. Also, in order to avoid color differences as much as possible, even if you only need a small piece of paint, the entire factory will re-spray the entire piece. For example, if there is a place on the door that needs to be filled, then to prevent the wiper from being used as a boundary, the first half or the second half of the door should be sprayed. In this way, if there is a little bit of color difference, it is not easy to see.

    Also, if you buy a car, if you want to be beautiful, you will buy pearlescent paint (fortunately, domestic cars do not seem to have any car use). When you make up the paint, you are ready to cry. The directionality of the lacquered mica granules is hardly (or almost impossible) the same as before. Even if the paint does not have a slight color difference, the painted paint can be seen at a glance.

    Now that computer coloring is under the circumstance of operators, the color difference between the lacquer and the original paint is indistinguishable from ordinary human eyes. This can be assured. The key is: paint used, equipment used, and people's responsibility.

    There is no possibility of using original paint to make up paint. But under normal circumstances, the depot will still recommend a designated refinish brand to a dedicated repair station. Good repair stations will also use good brands. Such as ici, ppg these imported brands are relatively high prices, domestic quality and relatively good quality, such as Laughing two-component acrylic urethane varnish, but also a professional color system, is a good choice. However, in small shops, even some less formal specialized repair stations may use cheap lacquer (if not saying they are false) for cost reduction considerations. At that time, the effect may be the same. Three months later, the color difference came. This, our users can hardly identify. Only look for the refinish paint brand.