How to choose the right door and window sealant?

1. Pay attention to the displacement ability of the sealant

In the selection process of sealant, in addition to the standards it meets, attention should also be paid to its corresponding displacement level. Displacement capacity is the most critical indicator of sealant elasticity. The higher the displacement capacity, the better the sealant elasticity. 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 airtightness and watertightness of doors and windows.

High-displacement grade products have a greater ability to withstand joint displacement changes. It is recommended to choose high-displacement grade products as much as possible.

It has good adhesion and aging resistance and is suitable for the installation of high-end indoor and outdoor doors and windows. Non-structural bonding and sealing with seals, insulated panels, concrete and general metals.

2. Choose the correct sealant product according to the purpose

Hidden frame windows and hidden frame opening sash 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 process of doors and windows, the sealant used for stone joints or joints with stone on one side should be a stone-specific sealant that meets the GB/T 23261 standard.

Fire-resistant sealants are more suitable for fire-resistant doors and windows or building exterior doors and windows that require fire-resistant integrity.

In application places that have special requirements for mildew prevention, such as kitchens, bathrooms, and dark and humid areas, mildew-resistant sealants should be used to seal door and window joints.

How to choose the right door and window sealant?

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