Don't ignore these problems when applying waterborne wood paint in hot and humid weather.

When water-based wood paint is constructed in high temperature or high humidity climate, there are often abnormal problems such as film wrinkling, poor adhesion, film cracking and white paint layer, which affect the construction progress and decorative effect. So, what problems should be paid attention to in the construction of waterborne wood paint in the world of high temperature and high humidity?

? 1. The paint film is wrinkled

The film of waterborne wood paint will dry quickly at high temperature, but the thicker inner layer will dry slowly. In the drying process, the flow of paint will produce tension difference, which will lead to the uneven surface of the final paint film, which is often called wrinkling. Therefore, Bo Tu should be used in construction, instead of one-step molding, so as to ensure that the coating is dry and evenly formed, and achieve the effect of flat paint film.

2. Poor adhesion of paint film

In the environment of high temperature and high humidity, after the construction of general waterborne wood paint, it will be found that the adhesion between coatings is not firm, resulting in poor adhesion, peeling between layers, and even tearing into a whole like peeling, resulting in poor adhesion between layers of paint film. The direct reason is that the painter did not polish the layers well during construction. Therefore, during construction in hot weather, each layer should be fully polished to improve adhesion, and construction should be arranged in the morning and evening to ensure product quality.

3. The paint film is cracked

This phenomenon is also common in high temperature construction. In the process of construction, the paint coating is too thick, which leads to the fast drying of the surface layer and the slow drying of the thick inner layer, which directly leads to the cracking of the paint film. At the same time, we should also pay attention to the quality of plates, and it is recommended to buy plates with good stability.

4. The paint layer is white

It is mainly caused by the excessive humidity in the construction environment and the thick paint film during construction. Due to the high temperature and high air humidity in some areas, with the increase of temperature, the drying time of paint surface is accelerated, but the actual working time is slow. Painters often ignore the actual working time in the construction process, and proceed to the next step immediately after the surface of the paint layer is dry, which leads to the incomplete actual work of the underlying paint layer. In heavy rain or humid weather, it is most likely to produce white paint layer.