The whole strategy of car paint maintenance[汽车美容知识]

carA beautiful appearance may be the first requirement of many people for a car. Of course, the maintenance of the car's appearance is also an important point of car maintenance, that is, the maintenance of the surface paint of the car.

Car paint knowledge

Car paint is generally baked paint. In the car factory, the frame and body are welded, and after the body is manually repaired, the next process is painting. Generally speaking, the first is the primer. Dip the white leather car body into a syrup-like paint tank, take out the drying primer; then send it to the dust-free workshop, spray the top paint with electrostatic spray paint process, and then dry it at a temperature of about 200 degrees. Some will apply a layer of varnish. In this way, the paint process is complete. There are several general topcoats: ordinary paint, metallic paint, and pearl paint. The main components of ordinary paint are resin, pigment and additives; metal paint has more aluminum powder, so it looks bright after completion; pearl paint is added with mica particles. Mica is very thin and reflective, which gives it a colorful effect. If it is a metallic paint plus a varnish layer, the car paint looks very dazzling.

Pay attention to daily maintenance

1. Before, during and after the vehicle is used, the dust on the car body should be removed in time to minimize the adsorption of dust on the car body by static electricity;

2. Rinse promptly after rain. After the rain, the rain stains on the car body will gradually decrease, so that the concentration of acidic substances in the rainwater will gradually increase. If the rain stains are not washed with water as soon as possible, the topcoat will be damaged over time.

3. When washing the car, wait until the engine has cooled down. Do not wash the car under the scorching sun or high temperature to prevent the detergent from being dried and leaving traces. Usually, you should use special detergent and neutral running water to wash the vehicle by yourself. Do not use alkaline detergent, soapy water and detergent to prevent the grease in the paint surface from being washed off and accelerate the aging of the paint surface.

4. Use a clean, soft cloth or sponge to scrub the vehicle to prevent mixing with metal shavings and sand. Do not wipe the vehicle with a dry cloth, towel, or sponge to avoid scratches. When wiping, wipe gently from top to bottom along the direction of the water flow, and should not wipe in circles and horizontally.

5. Some special extremely corrosive traces (such as asphalt, bird droppings, insects, etc.) should be removed in time. In this regard, it must be cleaned with a special cleaner, and do not use a blade to scrape or use gasoline to remove it, so as not to damage the paint surface.

Car paint repair

Generally small scratches, such as scratches on the paint surface, whitening of the scratches, or even if the paint surface is scratched into hair, there is actually no need to touch up the paint.Light, useCar waxIt can be handled; if it is heavy, it is enough to be polished.

More serious, you can see the color of the underlying primer (for example, the white paint underneath). Generally speaking,bumper,rearview mirrorwithWheel eyebrowThese parts are plastic parts, will not rust, the problem is small, it does not matter whether the paint is repaired or not. If it is scratched on the steel plate of the car body, it must be painted, otherwise, even a small damage, the steel plate will begin to rust, and by that time, even the touch-up effect will not be ideal.

Precautions for touch-up paint

First of all, all places, even in the original factory, will not use any "original paint" for touch-up paint! If the repair shop tells you that they use "original paint", it must be lying to you, in order to increase maintenance costs. The reason is simple: after the original factory spray paint process is sprayed, it is baked at a temperature of 200 degrees. With so many parts on the finished car, how many can withstand a temperature of 200 degrees?But under normal circumstances, the manufacturer will still recommend the designated brand to the specialized repair stationRefinish paint. A good repair station will also use a good brand.

Secondly, the color of the refinish paint is all formulated before the repair. The reason is also very simple: your car may have been driving for a few years, and the paint has begun to fade, although you can't tell. If you park outside, the degree of fading in different directions will be slightly different. If you want to match the original color as much as possible, you can only adjust it now. The computer color matching of a large repair shop, the color difference between the paint and the original paint is indistinguishable by ordinary people's eyes. You can rest assured. Also, in order to avoid chromatic aberration as much as possible, even if you only need to touch up a small piece of paint, the repair shop will repaint the whole piece. For example, if there is a place on the car door that needs to be repaired, the upper half or the lower half of the fan should be fully sprayed with the anti-scratch strip as the boundary. In this way, if there is a small color difference, it is not easy to see. It is not difficult to understand why the front left side of the bumper is scratched and the whole bumper has to be painted. At that time, the repair shop can't say that the customer will be slaughtered.

hint

First of all, washing the car, a lot of water is undoubtedly very necessary. But many times, car washers like to use a high-pressure water gun to wash the paint in the vertical direction. In this case, high-pressure water may also damage the paint. Also, it is very common to use washing powder to pretend to be a special car washing liquid in the car washing place. Although these damages are not visible once or twice. But as time goes by, the harm cannot be ignored.

New cars are selling quickly now. The car you got may have just come out of the depot a few days ago. The baking paint has a characteristic, generally it takes a period of time to be really firm and hard. So, don't rush to wax the new car. I'll talk about it in three months. Try not to use hard wax after three months. After touch up the paint, it is best not to wash the car within a week.

Transfer from: Great China Automobile

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