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Requirements for the use of sealant on curtain walls

by:Zeyi     2021-11-15
The sealant used for aluminum alloy glass curtain wall includes structural sealant, construction sealant (weatherproof glue), secondary sealant for insulating glass, fireproof sealant, etc. The structural bee house used in structural glass assembly can only be silicone sealant. Its important component is silicon dioxide, which fixes the glass on the aluminum frame, and transfers the load and indirect action on the glass to the aluminum frame through the glue seam. Build sealant (weatherproof glue). The most important building sealants are silicone sealants, acrylate sealants, polyurethane sealants and polysulfide sealants. Polysulfide sealant and silicone structural rubber sealant have poor compatibility and should not be used together. The construction of weather-resistant glue for curtain walls must satisfy the requirements of relevant technical standards. Sealant for glass curtain wall joints, and construction sealant for colored steel plates. The building curtain wall is composed of a supporting structure system and panels, which can have a certain displacement relative to the main structure, and does not share the external protective structure or decorative structure of the building that is affected by the main structure. Sealant for joints of stone curtain wall. The relevant national standards define the technical requirements for sealant used in the joints of stone curtain walls. Silicone structural sealant. The aluminum alloy glass curtain wall is a curtain wall that uses silicone sealant glue to fix the glass, and the important component is silicon dioxide. Two-layer sealant for insulating glass. The sealant of the central control glass is a polyisobutylene sealant, which is airtight and watertight, but not strong. The second sealant includes polysulfide sealant and silicone sealant. Because polysulfide sealant is easily aging under ultraviolet radiation, it can only be used for hollow glass for exposed frame curtain wall that uses the inlay groove clamping method to install the glass. The fireproof sealant is used to seal the gap between the pipes on the floor and the hole of the floor and the joint between the fireproof layer of the curtain wall and the floor. The sealant used for aluminum alloy glass curtain wall includes structural sealant, construction sealant (weather-resistant glue), secondary sealant for insulating glass, fireproof sealant, etc. Build sealant (weatherproof glue). The building curtain wall is composed of a supporting structure system and panels, which can have a certain displacement relative to the main structure, and does not share the external protective structure or decorative structure of the building that is affected by the main structure. Sealant for glass curtain wall joints, and construction sealant for colored steel plates. Sealant for joints of stone curtain wall. The relevant national standards define the technical requirements for sealant used in the joints of stone curtain walls. Silicone structural sealant. The aluminum alloy perforated glass curtain wall is adopted. The structural bonding material adopted for the hidden frame and semi-hidden frame curtain wall must be a neutral silicone structural sealant, and the silicone structural sealant must be used within the validity period. Two-layer sealant for insulating glass. The sealant of the central control glass is a polyisobutylene sealant, which is airtight and watertight, but not strong. The second sealant includes polysulfide sealant and silicone sealant. The fireproof sealant is used to seal the gap between the pipes on the floor and the hole of the floor and the joint between the fireproof layer of the curtain wall and the floor.
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