Why does the PC endurance board continue to seep after it is sealed?

 Why does the PC endurance board continue to seep after it is sealed?

In the rainy season, why does the PC solid sheet continue to seep after it is sealed?

Polycarbonate sheet is applied to the roof of the building, the roof of the bus shelter, the curtain wall, the parking shed, the awning, and the vegetable greenhouse. In many parts of the country, it is completed by the construction and installation of some small engineering design companies. Because its PC endurance board and PC sun board have many characteristics, it will cause some construction quality problems after the completion of the project, such as airtightness. There are thousands of reasons for the water seepage of PC endurance boards and PC sun panels. The following are some of the reasons we need to meet when fighting customers:

1. Sealant type. In the process of business process exchange, we have encountered that the reason for the water seepage of many projects is the sealant. The requirements for the sealant of PC endurance board and PC sun board are very strict, and the most important point is neutrality. Silicone rubber, many customers do not meet the natural environment, and use strong acid and alkali structural adhesives, which lead to incompatibility with PC endurance boards, resulting in water seepage of bad boards; another reason is the use of fake and inferior sealants, because The sealant sales market is also very chaotic. Many consumers do not know which sealants are good for sealing, which leads to poor airtightness of PC boards and decorative strip units.

2. The index in the middle of the pre-embedded PC board is not enough. We know that the most important feature of PC endurance boards and PC solar panels is thermal expansion and contraction, and a space for thermal expansion and cold contraction must be embedded between the panels.