Auto Paint Thickness Gauge Test Automotive Paint

Time:2020/04/05 12:00:00 Browse:170

We say that the most important part of vehicle maintenance and repair is the vehicle paint, which is not only the facade of a car, but also the basic guarantee of driving safety. As one of the important parameters, paint film thickness is often measured by auto paint thickness gauge.

In vehicle repair shops or maintenance shops, the most common types of car paint are ordinary paint and metallic paint. Comparing the two with each other, it is easy to find that the composition of ordinary paint is relatively simple, with only some basic additives and resins. If the owner has other aesthetic needs, he can also add corresponding pigments to the car paint. Metallic paint is more exquisite and shiny in appearance, it adds more aluminum powder than ordinary paint.

The hardness of ordinary car paint is very low and the light damage rate is also very low. Often, slight friction will scratch the car surface. And relatively thick ordinary car paint will give people a clunky feeling, the surface of ordinary cars rarely use this paint. Metallic paint has slightly higher hardness, superior protection performance and higher brightness and gloss than ordinary car paint.

For the public, the actual condition of vehicle paint depends not only on the basic materials, but also on the craftsmanship and experience of the painter. Under normal circumstances, the performance of car paint is closely related to the spraying process. There are usually three steps in our construction. The first step is called mist spraying, which requires rapid and accurate shotguns. The film thickness of this layer is also the thinnest part of the entire car paint, but it can adhere tightly to the underlying metal. In the second step, the spraying speed is moderate. And the thickness control requires experience. The uniform and smooth paint surface can better highlight the surface gloss. The last spraying of the varnish requires normal and slightly slower speeds. This step requires the technician to grasp the flatness. From the perspective of practical performance, the last layer has the highest thickness, which can prevent scratches and isolate external oxygen, acid and alkali substances and small sand particles. Spraying methods are divided into single-pass spraying and double-layer spraying. One-pass spraying is often used for the thinner paint surface. The top surface paint has high requirements on thickness, gloss, and hardness. Therefore, two-pass spraying is more effective .

It should be noted that neither too thick nor too thin a vehicle paint film is the best vehicle condition. On the one hand, too thin paint films are prone to redox reactions and the surface is often too dry to peel and peel. On the other hand, a thin layer of paint film is not conducive to maintaining the basic performance of the internal metal structure. In addition, a paint film that is too thick will result in poor uniformity of the paint surface. And for some quality inspection departments, it will use a highly precise auto paint thickness gauge. This kind of car paint thickness will be difficult to reach the established standard.

The basic application range of the auto paint thickness gauge is relatively fixed. The car paint thickness has a strong authority. Linshang auto paint thickness gauge has three modes to choose from after turning on, which is mainly set for the substrate. After performing the basic zero adjustment, strictly follow the subsequent measurement operation steps of the manual, which can greatly improve the accuracy of the data.