Do you need to wash the car after it rains?

Method 1: Wash the car frequently in rainy days. It has rained these days. Why wash the car? Wait until it clears up. In fact, this is not correct. Wash the car in rainy days. Washing the car is not only because the car is dirty, but also to protect the car paint. If you pay close attention after the rain, some cars will be soaked with water droplets. This is because car owners who pay attention to car maintenance often wash their cars to remove dust, asphalt, resin and so on. Adhere to the paint surface and keep the paint surface smooth, so the rain will condense into water droplets. If an oily protective film is coated on the paint surface, it can prevent the rain from directly corroding the paint surface. On the contrary, some cars are painted with rain. This is because the owner doesn't like to wash the car, and there is a thick layer of dust on the car. When it rains, it becomes a layer of mud, which can absorb water, so that the rain directly forms a water film on the paint surface. It will not only get dirty, but also accelerate the acid rain to erode the body paint. Therefore, frequent car washing can not only keep the car clean, but also protect the car paint. As for rainy days, why wash the car? In fact, on rainy days, the car body is covered with a layer of soil, which is wrapped on the car body like fine sandpaper. Once there is friction, it is like polishing car paint with sandpaper; In addition, rain contains all kinds of harmful substances, and after being absorbed by sediment, acid rain can easily corrode car paint. Thirdly, after the rain, the muddy water on the car body will increase the surface temperature of the car body when it meets the sun, and the paint surface will be corroded bit by bit. Therefore, the concept must be changed. Even in rainy days, you should always wash your car. Method 2: Waxing before and after rain is particularly important, especially the paint maintenance before and after rain. Waxing before rain can produce a protective film, which plays a sealing role and prevents rain from causing acid corrosion to car paint. In the rainy season, it is best to give your car a paint maintenance, or wax it at least twice a month. Paint surface maintenance can choose paint surface sealing or coating. After the paint surface is sealed with glaze, a reticular protective film will be formed, which greatly improves the gloss of the original car and reduces the damage of acidic substances to the car paint. The paint film protects the unique components in glossy wax, which can effectively resist the invasion of ultraviolet rays, acid rain, electrostatic dust and water stains, and the waxed paint film looks brighter. Waxing should be classified according to different paint films, otherwise it will be counterproductive. If you can't tell the function of all kinds of wax, you can go to the specialty store to wax, and don't wax casually in the roadside shop. The repair of paint film damage should grasp the scale. Slight scratches can be repaired in a car beauty shop, with high speed and good quality; If there are some serious traumatic scratches, you need to go to the garage to deal with them. They are required to repair with matching paint and polish and wax it to avoid the adverse consequences caused by using incompatible paint. On rainy days for several days in a row, there are often sticky substances such as asphalt on the car body in addition to soil. If it is not cleaned in time, it is easy to stick to the car shell for a long time and it is difficult to remove it. Pay attention to the bottom and lower part of the vehicle, which is the place with the most dirt accumulation, which is difficult to clean and easy to rust or hurt the paint surface. Method 3: It is best not to park your car outside. If the weather is windy and rainy, the inner layer of the car coat will repeatedly whip the car paint, especially when the sand blows into the car coat, which will draw countless tiny scratches on the car body and cause the paint surface to be black over time. In addition, after the sandstorm, do not directly clean the sand on the car body with a rag or rag, but rinse it with clear water to prevent the rag and the sand on the rag from scratching the paint surface. First of all, when driving at high speed, even the dust in the air may cause tiny hair scratches on the surface of car paint. This kind of scratch can be easily removed with wax and fine-cut abrasive. In addition, some hard objects scratch the car body lightly, which will leave obvious scars on the car paint, but if you touch it carefully, you will find that the scars are very shallow and only hurt the transparent layer on the surface of the car paint. Using fine or medium cut abrasive wax, you can repair such minor scratches yourself. The principle is to rearrange the molecules of automobile surface paint and move the surface paint on the side to repair the wound. Heavy scratches directly hurt the paint layer. The best way is to drive the car to the 4 S shop and ask for a touch-up paint. There is another solution: buy a touch-up pen with the same color number, and you can repair the damage at any time. On the one hand, it is beautiful, on the other hand, it protects the car paint from deeper corrosion and damage. Tips for paint protection ● Bird droppings should be removed in time to remove some special strong corrosive traces, such as asphalt, bird droppings and insects. In this regard, it must be cleaned with a special cleaner, and it is not allowed to be scraped with a blade or eliminated with gasoline, so as not to hurt the paint surface. Before, during and after use, the dust on the vehicle body should be removed in time to minimize the adsorption of static electricity on the dust on the vehicle body. ● Toothpaste can prevent rust. Toothpaste can temporarily prevent rust. When you find a new small scar, gently circle the toothpaste and apply it to the scratch. Don't forget to apply it again after it rains or washes the car. Doing so can generally reduce scratches and imprints, and can also simply play an isolation role to prevent rust, which is no problem in the short term. Especially white car paint, the effect is the most obvious. ● Avoid long-term exposure. Don't expose the paint film to the sun, because ultraviolet rays in the sun will damage the paint film. Although the anti-ultraviolet ability of automobile paint film is getting better and better, it still can't completely resist ultraviolet damage. So cars that have not been used for a long time are best kept in the garage. ● Carefully pull the coal car and have a safe parking environment. Don't park your car on the side of the road or in the alley when you travel. It is best to have a garage for parking at home. If you don't want to park in the open air, you'd better cover the car, which can reduce the chance of damage to the paint film. Also be careful of foreign body impact. When vehicles pass some trucks loaded with coal, ore, stone, scrap iron or slag, etc. When driving, you should choose a wider section to overtake, and don't overtake behind it or when the two cars are very close. ● Pay attention to pests.