What is waxing?
Waxing not only makes the car bright and beautiful, but also protects the car paint. Zhang Xiangheng's paper published in Automobile Repair and Maintenance, a series of lectures on automobile body painting technology (9)-polishing and waxing of automobile body painting.
As mentioned above, after waxing, the wax will form a thin protective film after drying on the coating surface. This protective film can reflect the ultraviolet rays in the sun and reduce the damage to the paint film. The smoothness of wax can also effectively prevent water molecules from penetrating into the coating film, and it has antifouling ability.
This kind of wax is coated with a layer of wax film, but it still has a certain hardness, which can also reduce the degree of scratches on the surface of the coating. Kind of like sunscreen. When you go to the seaside to play, apply it on the skin surface to prevent the skin from being eroded by sea breeze and sunburned by the sun, which has certain effect.
What's with the coating
The function of coating is actually similar, but from a technical point of view, it is relatively more advanced and advanced than waxing. If waxing is compared to the first generation sunscreen, then the coating may be the sunscreen essence lotion for advanced skin care, which tastes similar.
Lu's paper published in Straits Science and Technology and Industry is about the technical differences of waxing, polishing, coating and crystal plating on paint surface.
It is said that coating technology is to overcome the shortcomings of poor protective performance and short residence time of car wax products, and glaze sealing technology may cause secondary pollution to car paint, so it came into being. The main component of many automobile coating agents is PTFE, that is, Teflon, an organic fluorinated polymer. This material is very smooth, which can prevent the car paint from getting dirty. What is it like? The non-stick pan is similar to this principle.
Even if you don't put oil in it, you can still get eggs and steaks, and you can still slide on them, right? It won't stay there. If it is plated on the car paint together with some non-petroleum environmental protection materials, it can form an oxidation protection layer, which completely isolates the car paint from the outside world and plays the roles of oxidation resistance, acid and alkali resistance and ultraviolet resistance.
How to choose what you usually do?
Waxing and coating can protect car paint, which one to choose? Depends on the cost performance, right?
Duration comparison
As mentioned earlier, one of the disadvantages of car wax products is that they are easy to lose and last for a short time. Hebe Tien and others published a paper "Application and Prospect of Automotive Paint Painting" in the magazine "New Material Industry", in which it was said that the duration of waxing for ordinary cars may be 7 to 10 days, which is better than half a month. If it is a coating, it may take 3 to 6 months. If it is good, it may even take more than 1 year.
cost comparison
Of course, the price of coating is a little more expensive than waxing. As mentioned in the previous paper (about the technical differences between waxing, glazing, coating and crystal plating), the market price of waxing is generally 50 to 150 yuan; If it is coated, it will cost 1300 to 5000 yuan to get to the store. But if you count the validity period, the gap is actually not that big. Let's calculate according to the most ideal situation: wax 50 yuan for half a month; Coating 1300 yuan for a whole year. The cost of waxing and coating for a whole year is 100 yuan, and the cost of a KFC meal is similar, right? Besides, there are many times of waxing, so time should be counted, right?
performance comparison
The price difference is not too much, but the coating is better than waxing in performance. After all, it is a new generation. Just now, there was another article "Application and Prospect of Automobile Paint Painting", which was mentioned above. The film hardness of the protective layer produced by coating is usually 4 to 6 hours; The hardness of the protective layer produced by waxing is about 2 to 3 hours, which is slightly smaller.
Not only in hardness, hydrophobicity, high temperature resistance, film toughness and oxidation resistance, the coated protective layer is indeed better than the waxed protective layer. On the whole, think about it. At first glance, coating is actually more cost-effective than waxing. Similar prices can buy products with comprehensive leading performance, for our ordinary consumers.
What are the disadvantages of coating?
It is easy to be deceived, but the coating is also flawed. 1 This number is: some products sold by car beauty shops are good or bad, because the production process is not necessarily shown to us, and the quality is uneven. We ordinary consumers went to see it, and he gave you a yellow one, a blue one and a black one: "Which bottle do you want?" How do I know, right?
This paper also introduces the application and prospect of automotive coatings. Many so-called "coated products" on the market are actually simple waxing and glaze sealing, and most of them are chemical waxes synthesized from petrochemical raw materials, which are called "pseudo-coatings" by people in the industry. The real paint coating is an inert film composed of inorganic silicon, fluorine polymer materials and so on, such as PTFE we just talked about.
When you are painting, you can look at the products sold in the car beauty shop. Are the words "silicon" and "fluorine" written on the list of main components? This is easy to recognize, and you will know if it is.
Construction is more troublesome
The second disadvantage of coating is that the construction time is much longer than waxing, which usually takes 2 to 6 hours, while waxing usually takes 1 to 2 hours. Actually, it's a bit like cooking. You usually fry a green vegetable and it will be cooked in a few minutes. It fell out as soon as you got it, didn't it? But if you make a colorful and delicious Buddha jumping wall, it will take several days.
Coating is a more cost-effective choice than waxing.
So in general, coating is a more cost-effective choice than waxing. If you don't have time and are afraid of trouble, you can also try the coating agent sold by our family. The main components of this coating agent are organic fluoropolymer and special siloxane, which is not a so-called "fake coating". It is deceptive to put it in a bottle.
The performance also meets the standard of CAS 203-20 12 "Coating Agent for Automobile Coatings" compiled by China Standardization Association. Although it is not as durable as what we did in the store, we came by ourselves after all. Considering the more convenient operation, we optimized the process and product design.
But the advantage is that our price is much cheaper. This price is similar to waxing, but it can last for two to three months. If the car condition and environment are good, it can last even longer, and the cost performance can be highlighted. A bottle, ordinary cars can be used 2 to 4 times, SUVs times or so.
It's more convenient. You can come by yourself. You don't have to wait in line for thousands in the store. You can take it by yourself for tens of dollars. You can try it if you are interested.
What's the difference between washing your own car and washing it outside?
Speaking of waxing and coating, is it necessary to wash the car anyway? Why is car washing in car wash shops so expensive and getting more and more expensive? What's the difference between washing the car in the store and washing it yourself?
Why do I always feel that God is targeting me? Every time I wash my car, it rains the next day. This thing is actually based on science. We also saw a gas station by the roadside. We drove in and turned around, like a new treasure island. After the turn, can you go in and wash it out? 1What's the difference between 0 yuan once and 80 yuan once manually?