Introduction of insulating glass sealant

a) Butyl rubber has quality problems or is incompatible with silicone rubber b) Insulating glass is filled with mineral oil with a second sealant c) Contact with oil-extended glue, such as weatherproof glue for curtain wall joints or sealant on doors and windows d) Other factors such as desiccant or processing technology

In order to ensure the quality of the glue injection process, it is recommended to make the following preparations before using the second insulating glass sealant: a: Requirements for use environment and maintenance environment: The injection area of ​​the second insulating glass sealant should be clean, dust-free, and ventilated. The temperature should be kept at 10℃-40℃, and the relative humidity should be 40%-80%. The temperature should not be lower than 10℃. When the storage temperature in winter is relatively low, it should be placed in the greenhouse for several days before use. At the same time, the temperature of the insulating glass curing area should not be lower than 10℃. b: Requirements for the surface of the substrate: all the adhered parts of the substrate should be cleaned to remove dust, oil or other dirt; when using offline low-emissivity coated glass to make insulating glass, the side sealing area must be carried out first In addition to membrane treatment. Experience sharing: The curing of hollow adhesive is a chemical reaction process, and temperature has a greater impact on its curing process. The appropriate use environment and maintenance environment are important environmental factors to ensure the best curing and bonding performance of the hollow adhesive. Dirt and dust will affect the final bonding performance, therefore, the surface of the substrate to be adhered must be cleaned. The film layer of the low-emissivity coated glass has poor compatibility with the structural adhesive. It is recommended that the coated glass be removed first during the processing to ensure a good adhesion between the hollow adhesive and the glass.

The secondary sealant for insulating glass has a great influence on the quality and service life of the insulating glass. The structural sealant for insulating glass is even directly related to the safety of the curtain wall. Therefore, we must choose the right product and the good product. The problems caused by improper selection of the second sealant can be divided into the following two categories: one is the loss of the function of insulating glass, that is, the loss of the original function of the insulating glass; the other is related to the safety of the application of insulating glass— -That is, the safety hazard caused by the falling of the outer sheet of insulating glass.