How to choose door and window sealant correctly?

1. Correctly select sealant products according to the purpose

● Concealed frame windows and concealed frame opening sashes require structural sealant to play a structural bonding role. Silicone structural sealant must be used, and its bonding width and thickness must meet the design requirements.

● During the installation of doors and windows, the sealant used for stone joints or joints with stone on one side should be a stone-specific sealant that complies with the GB/T 23261 standard.

● For fireproof doors and windows or exterior doors and windows of buildings that require fire resistance integrity, it is more appropriate to use fireproof sealants.

● In application places with special requirements for mildew prevention, such as kitchens, bathrooms, and dark and humid areas, mildew-proof sealants should be used to seal the joints of doors and windows.

2. Pay attention to the displacement ability of sealants

In the process of selecting sealants, in addition to paying attention to the standards they meet, you should also pay attention to their corresponding displacement levels. Displacement capacity is the most critical indicator for measuring the elasticity of sealants. The higher the displacement capacity, the better the elasticity of the sealant. The processing and installation of doors and windows should use products with a displacement capacity of not less than 12.5 to ensure the long-term air tightness and water tightness of doors and windows.

Products with high displacement levels have a stronger ability to withstand changes in joint displacement. It is recommended to choose products with high displacement levels as much as possible.

How to choose door and window sealant correctly?

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