In many people's opinion, if the car paint becomes dim, or there are sun lines or other scratches on the surface, just polish it. The construction time is short, the price is relatively affordable, and the effect is quite obvious. In fact, although polishing seems to be a direct and useful method. However, the thickness of the varnish itself is limited. Polishing again and again will make the varnish layer thinner and weaker, and lose the ability to protect the primer.
Before the advent of invisible car clothes, we usually used waxing, glazing, coating and crystal plating to protect the paint surface and prolong the service life of car paint. Waxing is one of the cost methods. Its principle is to fill the scratch pits with small car wax components to restore the flatness of the surface. At the same time, a thin wax film is formed on the paint surface to prevent the paint surface from contacting directly with the air, so as to slow down the oxidation speed of the paint surface and reduce the damage to the paint surface caused by large particles in the air and ultraviolet rays in the sun. Waxing can really make the car paint bright in a short time. However, due to the softness of the car wax itself, the durability is very limited. Generally, there is no wax layer after washing the car two or three times.
Sealing glaze and coating are more durable and easy to operate than waxing. In fact, these two can be regarded as one thing. They are also spraying "invisible protective layer" on the paint surface, but the materials used are slightly different, and the material cost of sealing glaze is lower. Although the durability is obviously better than waxing, the sealing glaze and coating will fall off slowly over time. Depending on the service environment, it can generally last for 3-6 months. In addition, there is a fast coating product on the market, which is known as a spray and wipe, which is equivalent to waxing, and can even achieve the effect of crystal plating. The cost performance is really good, but the durability is between waxing and coating.