At present, the silicone structural sealant used in the construction of curtain wall engineering is classified into two types by component: one is a single-component silicone structural sealant, and the other is a two-component silicone structural sealant. Some curtain wall projects are in a hurry and may be constructed in winter, while the temperature and humidity of the winter environment are low, and the curing speed and bonding speed of silicone structural sealant will be affected, and problems are likely to be encountered during the construction process.

In order to ensure the quality of the construction of silicone structural sealant for curtain wall in winter, according to the provisions of 9.1 general processing in JGJ 102-2013 "Technical Specifications for Glass Curtain Wall Engineering", the temperature and humidity conditions of the injection environment of silicone structural sealant should comply with the provisions of structural sealant products. In other words, the user should carry out construction in accordance with the recommended environmental requirements in the construction process of the silicone structural sealant manufacturer. The environmental requirements of our Baiyun brand silicone structural sealant products are: temperature 10℃ ~ 40℃, relative humidity 40% ~ 80% of the clean environment, rain, snow can not be constructed.

According to the requirements of the specification, the winter construction of the production plant should meet the requirements of the use of the environment, and the temperature and humidity of the sealant use environment should be increased as much as possible in low temperature weather. In the environment other than the above temperature and humidity requirements, our company does not recommend the user to construct glue. Because: when the temperature is too low, the wettability of the adhesive and the substrate surface is reduced, and there may be imperceptible fog or frost on the substrate surface, which affects the bond between the silicone structural sealant and the substrate. Under low temperature and low humidity conditions, the curing speed and bonding speed of silicone sealant are slower than normal, which will lead to longer maintenance time and affect the construction.

If the user has special circumstances and needs to be built in a low temperature environment (the ambient temperature is below 10 ° C), it is recommended to carry out a small area gluing test before use, and carry out a peel bond test to confirm that the sealant is cured and bonded well, and the maintenance time can be extended appropriately depending on the situation. When necessary, the choice of primer can be considered to speed up the bonding speed and reduce the risk of poor bonding due to low ambient temperature. At the same time, it is appropriate to choose a time period with higher temperatures throughout the day, and the time is more appropriate from 9 a.m. to 3 p.m. In the construction process, the user should strengthen the quality control of the construction process to ensure the construction quality.