It is said that 90% people love to ignore waterproof construction problems. Have you laid your gun? Waterproof construction Many people say that it is just to brush waterproof paint, and I can brush it, too. You'll understand it after reading it. That's right. It's really to brush waterproof paint. Why is the waterproof quality of the same waterproof paint different? In fact, it's learned to brush waterproof paint. Let's have a look, what's the knowledge of waterproof paint, what common mistakes we make in waterproof construction, and listen to whether you are lying down and getting shot.


According to many years' experience in waterproof industry, common details of waterproof construction need attention are these. Let's have a look. Everyone seldom pays attention to the waterproof thickness when brushing waterproof paint. It is often said that it is enough to brush three times or two times. What you say is true, but no one will pay attention to how thick it is. Others say that the thicker it is, the better it is. Is this true? Waterproof Xiaobian is going to tell you today that this idea is definitely wrong. Why? The reason is that the one-time coating is too thick. After the surface is dried to form a film, the internal coating is not yet completely dried. With the evaporation of water vapor, it will cause blistering or even cracking. Pay special attention to the internal corner. There are still some people who are so-so in order to prepare for the preliminary waterproof work in time. Before the waterproof coating, the base layer is fully wetted, and some of them start to apply waterproof coating from Mingshui. In fact, this kind of operation is wrong. Why? Waterproof Xiaobian will explain why. When there is clear water in the base layer, the waterproof coating will be diluted, resulting in uneven emulsion, change of proportion, whitening of the surface and so on. The water absorption of the base layer is strong, and it absorbs the emulsion components in waterproof coating, which leads to the defects such as dusting, no strength, pinholes and so on in the dried waterproof layer. Therefore, it is recommended to fully spray water for wetting. There are still people who have such problems. For the above operations, it is done according to the requirements, but it is still not ideal. I heard him tell me in detail about his practice of brushing waterproof paint in waterproof construction. I found that the problem with his brushing waterproof paint is that the interval between brushing waterproof paint is too short. Many people wonder, and the interval between brushing waterproof paint is also required. Of course, because the principle of brushing waterproof paint is "cross, Bo Tu many times". Generally, it is applied twice, and the second coating should be applied again 4-8h after the first coating, otherwise it will destroy the first coating or cause blistering or even cracking. Just like when you cook, the problem of putting more salt and less salt is the same as putting salt at the beginning or at the end. It is not the same as putting salt at the back that affects the taste of the dish. Similarly, the interval between brushing waterproof paint will also affect the waterproof quality.

In a word, the waterproof trap editor reminds everyone not to look at the waterproof coating in waterproof construction so simply. The simpler it seems, the greater the knowledge in it. The above are some common problems in waterproof coating brush for everyone, and also some questions that everyone encounters. Of course, there are far more than these waterproof construction details to pay attention to in the way of construction. Therefore, we should be good at finding out the details in waterproof construction and making waterproofing superb.