There are many places where the car is easy to rust, such as the damaged paint sheet metal surface, engine shield, brake disc, exhaust pipe and so on. Some friends will say: iron will rust, it is difficult to avoid. So how to prevent car rust? Let's have a look.
Three reasons why love cars to rust
1. Application of automotive materials
Due to the limitation of price and brand positioning, it is impossible to use good sheet metal materials. This leads to the hardware of rust. Undoubtedly, the higher the price, the more expensive the car will use materials with higher cost, such as hot-dip galvanized steel sheet, all aluminum material, high-strength composite material, automobile carbon fiber, etc., which are naturally difficult to rust. Who has ever seen all aluminum body and chassis Will it rust? At the same time, whether the automobile manufacturers cut corners or not will also make the performance of automobile materials vary greatly.
We know that automobile steel plates can have many kinds of antirust treatment, such as zinc plating, chromium plating, etc. in order to save costs, automobile manufacturers need to save these processes, which is why some automobile exhaust pipes are rotten in a few years. In addition, there are some technological gaps, such as coating process and welding The difference of joining technology will also make the degree of rusting appear "congenital" difference.
2. External causes
The external cause is mainly related to the use environment. In some places, the environment is poor, and the contact with acid rain and corrosive dust is more; in some places, the weather is wet and the rain is more, resulting in serious corrosion of the chassis; in some places, the road conditions are poor, often hitting the chassis or gravel hitting the chassis, resulting in surface damage, increasing the possibility of rust prone places, such as the engine lower guard plate, exhaust pipe, etc.
3. Human factors
Most of these are caused by improper or "lazy" use of cars by our owners. For example, if the paint is not damaged for a long time without repair, the surface of the inner sheet metal in the paint is exposed to rust in the air; driving often leads to the chassis contacting with water for a long time, which leads to corrosion of the chassis; if the car is not washed for a long time, especially after rain, the rainwater will not be cleaned up, which will corrode the car body; the car is often placed in a humid environment Large places, such as the seaside, riverside and so on. The so-called "laziness" mainly refers to the fact that the car is seldom taken care of, and the appearance of the car is rarely maintained, such as car washing and waxing; the tail of the exhaust pipe is often filled with water, but not cleaned up.
Methods of preventing automobile from rusting
1. Watch out for minor bruises
The paint surface is often rusted. In addition to the common collision and scratch, the small stones from the tire hit the paint surface when driving, which will cause the paint surface to flake out one by one. After a long time, small rust spots will appear. And these small scars are easy to be ignored because most of them are in humble places. Therefore, it is necessary to regularly check the car body, engine hood and body around, once found, it is necessary to timely go to the professional beauty shop for treatment.
2. Check the humidity of the water easily
Some gaps such as the bottom of the car body and the floor of the car are easy to accumulate sludge. If the owner does not clean it in time, it will hide the moisture. Therefore, the inner and outer edges of the wheel hub, the bottom corner of the door and trunk, the key hole of the door and the movable part of the wiper holder should be checked frequently. At the same time, the drainage holes of the door and all parts of the body should be kept unblocked, and the humidity of the covering materials in the car, such as carpet, should be checked to prevent the floor parts from rusting.
3. Soft paint for sealing glaze
Some vehicles with soft paint surface may also cause fine marks when sand particles hit the car body during high-speed driving. For this kind of car, you can seal the car body, it can form a network of strong protective film, improve the hardness of the paint surface, the effect can be maintained for about a year. And the coating can also achieve a similar effect. In addition, the bottom of the vehicle can be armored or sealed with plastic, which can protect the chassis from acid rain and corrosion, prevent the original protective layer from drying and falling off, and prevent the impact of small and medium stones on the chassis.
4. It's better not to cover the car
If the vehicle is parked outside, if the weather is windy and rainy, the inner layer of the car coat will repeatedly draw paint. Especially if there is wind and sand in the car clothing, countless small scratches will be made on the body, and the paint surface will be blackened after a long time. In addition, do not use a duster or rag to clean the sand particles on the car body directly after the sandstorm, but wash them with water, which is also to prevent the sand particles on the duster and rag from scratching the paint surface.
5. The touch up pen can deal with the mark
If the corrosion is not very serious, you can first use very fine water sandpaper dipped in water to gently remove the rust spots, but do not grind without direction, and grind in the same direction in a straight line. After wiping completely, apply a layer of primer. In case of new scratch, it can be applied with primer directly after wiping. After that, if the vehicle is equipped with a small pot of factory paint, you can wait until the primer is dry, then grind it with sandpaper, and apply the original paint on top of the primer. If you don't have the original paint, you can buy a touch up pen and color it with the touch up pen. Although this treatment is not as good as going to the beauty shop, it can also prevent the rust from expanding and aggravating if it is small or inconspicuous.
6. Toothpaste can temporarily prevent rust
When you find a new small scar, gently smear the toothpaste around the scratch. Don't forget to apply it again after rain or car wash. This can generally reduce the scratch mark, but also can simply play a role in isolation, prevent rust, no problem in the short term. Especially white paint, the effect is most obvious.
