Failure reasons and solutions of insulating glass.
The production of hollow glass raw material quality; key factors affect the service life of hollow glass sealant is ageing resistance and desiccant adsorption capacity, and the determining factor is the performance of sealant. Because no matter how much the desiccant adsorption capacity, inside the hollow glass after a certain limit, when the hollow glass desiccant completely saturated, again good desiccant also unable to water vapor adsorption, then the hollow glass is invalid. Only when the sealant has good sealing performance, moisture permeability coefficient is low, the amount of water vapor into the hollow glass rarely, and keep this state, only rarely can guarantee the hollow glass desiccant inside gas drying, so as to ensure the effect of hollow glass.
The typical phenomenon of the failure of insulating glass products is that the condensation and water inflow in the insulating glass interlayer affect not only the appearance of the whole glass, but also the thermal performance of the whole glass.
To keep the sealant unchanged for a long time, it must require the sealant has good anti-aging properties, if the material quality is not good, it will affect the life of hollow glass products, in all sealants, most can reflect is butyl rubber as the basic raw materials of various types of sealant sealant and moisture barrier properties, and so on standard hollow glass curtain wall curtain wall must adopt double sealing is a very correct decision. Here are a variety of sealants water vapor permeability coefficient table, from the table we can see that the structure of glue can not be used as insulating glass sealant alone.
