Summer is here, what is the best way to protect car paint?

The maintenance of automobile paint has become one of the routine maintenance items of vehicles. Faced with all kinds of maintenance methods, have you ever wondered why you should maintain car paint? The reason is naturally that the color of the vehicle will gradually change. For example, pure white cars will gradually become "ivory white", and black and car-colored cars will gradually lose their luster. What is the reason? Please look at the paint structure below.

The role of the colored paint layer is naturally to make the vehicle more dazzling, but the solid color paint is dull, and the state is like a painted small bench, with color but a little "black". If you want to improve the brightness, you need to spray "transparent varnish" on the paint surface, and use its mirror-like function to refract light to achieve brightness, so as to protect the aging of the paint surface, such as isolating air and rain, and preventing oxidation and discoloration. However, the color paint will still change under the action of high temperature, and the color will become lighter and lighter.

2. The varnish layer itself will also age (oxidize) because it is also a kind of paint. The oxidation of varnish will gradually appear pale yellow from the outside to the inside, and the superposition of different colors will always produce other colors, so the discoloration of varnish will change the visual effect of vehicles. If you want to ensure that the color is "positive" enough, the only way is to add a protective layer on the varnish to isolate rain and oxygen. So which is the most ideal conventional way?

Normal hard car wax costs only tens of yuan per box, and the so-called "big brand" costs several hundred yuan. Other supporting tools need towels, of course, the vehicle should be cleaned in advance. Waxing technology and technical requirements are also very low. After the vehicle is cleaned, stick hard car wax with a sponge and apply it to the body in the form of horizontal lines or circles (the best way is to draw horizontal lines instead of sun lines). If the application speed is fast enough, such as 10 minutes, then you just need to polish it with a towel from beginning to end in the application order; This process is called polishing. The concept is to grind coarse car wax into a small and high-strength combination, so as to achieve transparency and protect varnish.

To sum up, car wax is to add a set of "short-term varnish" to the car body, and a certain thickness can isolate the air and rain at a certain stage. However, under the combined action of air friction, rain erosion and reduction reaction, car wax will gradually become thinner (exfoliate); So waxing can only last about 2 months at a time. Fortunately, the cost of waxing is very low and the efficiency is very high. If you want to protect the car paint, you might as well operate it yourself.

Other ways

Electroplating, coating and other methods are not recommended, because its concept is no different from waxing, but there is "car injury behavior" in the process!

The so-called crystal plating coating is actually "advanced waxing", which uses composite materials and special grinding wheels (powered by angle grinder) to fuse materials with varnish layer to a certain extent and has high strength; However, there is basically no possibility of integration. At best, the adhesion and the strength of the material itself are higher, which can last about half a year. But waxing costs only a dozen yuan at a time, but crystal plating and coating cost several thousand yuan at a time. Is there a price-performance ratio after calculating the time period? To put it bluntly, it is the gimmick of the automobile aftermarket to fool automobile users.

Key points: the car needs polishing before crystal plating and coating, which is very harmful to the car, but must it be polished before waxing? -Waxing the car wax coated on the car body, and polishing the crystal coating is to polish the original car paint! The maximum thickness of varnish is only about 40 microns (microns), and normal polishing will wear off 5/ micron. "Advanced waxing" can only last for about half a year at a time, and it may wear through the varnish five or six times, resulting in the scrapping of the paint surface of the whole vehicle.

Summary: Waxing is the best way to maintain car paint, and everyone can do it by themselves. Other ways are of little significance. As for the invisible car clothing (car film), it doesn't make much sense. The clothes made of PVC will change obviously in three or two years, and it takes about 5k to replace a set. It takes about 5 years for clothes made of TPU to turn yellow, but the cost is twice as high. Ordinary car paint costs three or two thousand yuan, and clothes can only delay aging but can't play a role in collisions. Think about whether it is necessary to toss.

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