In the epoxy floor of the ground such as underground garages, warehouses, factories, etc., sometimes there are problems such as blisters and delamination, what is the reason for that? Is it the ground foundation, the materials, the construction process or the environment? This episode will be analyzed with you, and this article is also worth collecting.
The generation of blisters is generally divided into the following phenomena, the first is dense, the size is consistent, and the distribution is very uniform. The second phenomenon is that the big is big, the small is small, and the distribution is not uniform, what is the cause of these two phenomena? Let's start with the construction process of the entire floor, the foundation surface of the epoxy to decompose in detail. To make epoxy flooring, the foundation is very important, and we follow the national standard that the water content of the foundation cannot be higher than 8% of the water content.
But in the whole actual construction process, especially in the underground parking lot, sometimes its foundation is not waterproof, or there are many cases of floor leakage, a large amount of water vapor rises up or leaks water causes the ground humidity to be very high, we can not see it after doing the epoxy floor, but after a period of time, because there is no waterproofing, when the water vapor arches up, it will lead to all the blisters that are dense on the ground.
Is there any reason for this? In the second case, whether the epoxy undercoat is well or poorly dense will also lead to the phenomenon of blisters. If the bottom coating is not well compacted, it generally does not cause blisters, which may lead to a mortar layer. The putty layer will appear white. If it is said that it is dense, when a large amount of water vapor arches upward, blisters may appear in this case. Therefore, the reason why the undercoat may cause blisters is that the water content of the foundation is too high.
In the third case, will the epoxy middle coating cause blisters? If the mortar and putty layers are not dry, blisters may occur. Do you agree with this reasoning? If it is not dry, then when we are working on it, whether it is a putty layer or a mortar layer, people will step on it and it will produce sticky feet. At this time, if you are in construction, it will cause a lot of footprints, so if you don't do it, I think there will be some possibilities. In another case, if the solvent content in it is too high and does not volatilize effectively, this may lead to a large number of blisters.
In the fourth case, this kind of blister between the top coat and the middle of the process, this situation is generally rare, it does not produce blisters, it may be because the material contains some black solid or cashew nut oil, and the situation of oil reaction will cause this blister. But this kind of blister produces it will not form dense and very uniform, it will form different sizes, at this time it will form a delamination phenomenon. This is because the material contains too much oil, and it may also be because when we are making epoxy flooring, the foundation contains a large amount of base oil, and there will be a bulging phenomenon, which is called bulging delamination.
In order to avoid blisters when making flooring, it is necessary to deal with every link of the foundation treatment, the bottom coat, the mortar layer, and the top coating. Of course, the most important link is to control the moisture and humidity of the ground to prevent excessive moisture. The above are the various factors that may cause blisters in epoxy flooring, you can compare them one by one according to the causes of blisters, which may help you to avoid detours and pits in the process of construction.