Testing the pollution resistance of architectural coatings is to ensure that the coatings are able to maintain their properties and appearance when they are eroded by various pollutant substances without problems such as fading, peeling, discoloration or damage due to the erosion of pollutants. Architectural coatings are exposed to the erosion of various pollutants such as rain, dust, dirt, automobile exhaust, etc., which may cause damage to the coating surface. By testing the pollution resistance of the coating, it is possible to evaluate the performance of the coating under the erosion of different pollutants and determine whether it is suitable for use in such an environment. This can help ensure that the appearance and performance of the building is safeguarded and extend the service life of the paint.

The contamination resistance of architectural coatings can be tested by the following methods:

Simulated weather test: Paint specimens are exposed to simulated weather conditions such as salt spray, sun, rain and high temperature to simulate actual environmental conditions. The durability of the coating under the erosion of contaminating substances is assessed by observing changes in the coating surface, such as color change, whitening, peeling or damage, over a certain period of time.

Contaminant testing: Paint specimens are exposed to different types of contaminants, such as paints, pigments, chemicals, and other contaminants to evaluate the stability of the coating under the attack of contaminants. Different types of pollutants can be used during testing to simulate the actual use environment.

How to test the pollution resistance of architectural coating?

Wash test: Paint samples are placed in an environment that mimics contaminants, such as paints, pigments, chemicals, and other contaminants, and then washed for testing. The durability of the coating during the cleaning process is assessed by observing changes in the coating surface, such as color change, whitening, peeling or damage, over a certain period of time.

After these tests, inspection of color, appearance, adhesion and scratch resistance can be carried out. The results of these tests can be used to determine the pollution resistance of the coating as well as its applicability in a specific polluted environment, thus selecting a better architectural coating. North and South tide remind you: different types of pollutants and environmental conditions have different effects on the coating, so it is necessary to choose the appropriate test method according to the actual use of the environment and the type of pollutants. At the same time, the test time and pollutant concentration also need to be set according to the actual use situation.