Detection and analysis of coating application performance
In the laboratory environment, the performance testing of coatings is a serious discipline that involves the practical application of coatings, their performance under various conditions, and the long-term stability of coatings.

Outdoor exposure test
This test method is very important because it provides information on the performance of the coating in a real-world environment. Although testing for accelerated damage to coatings under harsh conditions can yield rapid results, this accelerated approach may not always be consistent with actual use over long periods of time. Long-term exposure in a real outdoor environment provides the most realistic data. At the same time, the performance of the new coatings can provide us with more information than those with known properties.

Detection and analysis of coating application performance

Laboratory simulation test
These tests are carried out in a controlled environment to simulate how the paint will behave under specific conditions. For example, in the automobile industry, the result of the anti-stoning instrument is relative to the actual stoning damage, which has a very high predictive value. However, the limitation of this type of test is that it can only predict the performance of the coating under certain conditions, and it may be difficult to fully predict its performance in complex environments.

Empirical test
These tests are based on prior knowledge and experience to provide predictions for the performance of the paint. Because they are often used for quality control, the results can be skewed and need to be repeated many times to get accurate data. The viscoelasticity of the paint film and the adhesion to the substrate are the key parameters of this kind of test.

The performance testing of coatings is not only to ensure its quality, but more importantly to predict its performance in various practical applications. Whether outdoor exposure, laboratory simulation or empirical testing, each approach has its own unique values and limitations. In good cases, a combination of these methods can provide us with comprehensive coating performance information. Further, in order to ensure the high performance and long service life of the coating, we need to have a deeper understanding of the basic mechanical properties of the coating, such as the viscoelasticity, adhesion and other related properties of the coating. This requires us to continuously research and develop new testing methods and technologies in the laboratory to meet the evolving needs of coating technology.