Author: Site Editor Publish Time: 2024-12-31 Origin: Site
One of the main reasons for the poor sealing of doors and windows is that the last step of door and window installation is not done well.
Although sealants are auxiliary materials in the manufacturing and installation process of doors and windows, and the cost is very low, they play an important role in the performance of doors and windows, especially in terms of watertightness, airtightness, thermal insulation and sound insulation.
If the sealant is improperly selected or has quality problems, it will cause problems such as water leakage and air leakage, which will seriously affect the airtightness and watertightness of doors and windows. Therefore, when users choose sealants for doors and windows, they must choose sealants that meet relevant standards.
Common displacement capacity (grade 20, grade 25, grade 35, grade 50) and tensile modulus (high modulus HM and low modulus LM) of silicone sealants
The displacement capacity refers to the maximum displacement that the sealant can withstand when the size of the joint changes due to thermal expansion and contraction of the substrate; the higher the displacement capacity, the stronger the ability of the sealant to withstand changes in the size of the joint.
Currently, most silicone sealants for doors and windows on the market are neutral silicone sealants, including ketoxime silicone sealants and alcohol silicone sealants.
Weather-resistant silicone sealant, Tengyu TNS731
For indoor scenes, users who emphasize environmental protection and hope to move in as soon as possible are recommended to use alcohol silicone sealants. For outdoor scenes, users who emphasize construction convenience or weather resistance are recommended to use ketoxime silicone sealants.
