Doors and Windows sealant is mainly used in doors and Windows and window frame caulking sealing and window frame and wall caulking sealing, sealing and waterproof in doors and Windows 1. The vast majority of doors and Windows sealant on the market are single component silicone sealant, which needs to react with water vapor in the air to cure. The curing process is affected by the ambient temperature and humidity conditions at the same time. The lower the ambient temperature and humidity, the slower the curing speed of sealant will be. What are the construction standards introduced by Xiangyang Auman door and window sealant manufacturers?

        Winter construction of doors and Windows sealant, due to low ambient temperature and humidity, sealant curing speed is slow, may affect the construction efficiency and quality. Xiangyang Auman combined with many years of experience in the application of door and window glue, and share with you the winter construction precautions of door and window sealant.

1. Before construction, should ** sealant and base material and related accessories compatibility, adhesion test qualified, sealant in the manufacturer stipulated storage period, at the same time, sealant surface dry, anti-adhesion and curing quality performance to meet the door and window assembly requirements.

        Because sealant related standards do not strictly stipulate the application environmental conditions of sealant products, so in the construction process, users should try to carry out construction in accordance with the construction environmental conditions recommended by sealant manufacturers. For example, Xiangyang Auman silicone sealant recommended construction environmental conditions are: temperature 4℃ ~ 40℃, relative humidity 40% ~ 80%. Requirements for construction environmental conditions may vary from manufacturer to manufacturer. Therefore, confirm the requirements before construction.

The above pictures are provided by Xiangyang Auman door and window sealant manufacturer

        2 winter temperature is low, the surface of the substrate is likely to produce frost or fog, resulting in wet glue seam. Such as sealant construction before the substrate surface is not dry enough, there is water vapor, glue joint wet may lead to sealant foaming; And wet glue joints will affect the sealing adhesive bonding performance, thus affecting the quality of construction. Low temperature construction, should fully confirm the substrate surface dry before construction.

        In the winter construction environment, the general temperature and humidity are low, and the curing speed of sealant may be significantly slower. It is recommended to extend the curing time after the construction of sealant, and it should avoid the large stress on the sealant joint after the construction, resulting in the deformation of the sealant joint, as shown in Figure 3.

        3. For the door and window factory door and window assembly construction, both sides of the window and window mounted glass need to glue construction, the usual practice is to first carry out construction on one side, to be cured after the sealant turned over and then the other side glue construction. For the need to turn over the construction, it is necessary to cure the sealant with enough depth to resist the deformation of the glue joint caused by turning over. At the same time, you can use heating or humidification measures to improve indoor temperature and humidity conditions and speed up the curing speed of sealant.

Xiangyang Auman doors and Windows sealant manufacturer reminds you: for winter construction, the environmental temperature and humidity conditions have a greater impact, we should do a good job in the construction quality control of doors and Windows sealant. If the environmental conditions exceed the specified requirements, it is recommended to first carry out a small area glue test in the construction process, and conduct a adhesion test, and confirm that the adhesion is good and there is no problem in the appearance before using a large area, and ensure the construction quality of the sealant for doors and Windows.