The life of Low-E glass depends primarily on the life of the hollow sealing system in which it is located. We know that the main constituent materials of the Low-E film layer are metals, alloys, metal oxides and metal nitrides. Metal nitrides are generally used as a protective layer in a film structure, and their properties are very stable. The metal oxide and alloy layers generally connect the silver layer and the protective layer as a dielectric layer in the film layer, and the properties thereof are relatively stable. The silver layer in Low-E is relatively active, but its oxidation requires the presence of moisture. Therefore, as long as the insulating glass does not fail, it is basically unnecessary to separately consider the life of the Low-E film layer.


Laminated glass life
Laminated glass refers to a composite glass product in which one or more layers of an organic polymer interlayer film are sandwiched between glass and the glass and the intermediate film are permanently bonded together. The laminated glass adheres to the film even in the case of chipping, effectively preventing the occurrence of chipping and penetrating fall events.


The life of laminated glass depends mainly on the material of the interlayer in the interlayer. Normally, wet laminated glass and EVA laminated glass are mainly used for indoor partitions, and are not suitable for building doors and windows or curtain walls. Wet laminated glass will accelerate aging under sunlight, and yellowing will occur after 1-2 years. Degumming bubbles, ice and fog will appear in 2-3 years. In general, wet laminated glass ages much faster than EVA laminated glass. EVA laminated glass is protected from direct sunlight and can be used for more than 10 years in indoor use.
PVB and SGP laminated glass, which are commonly used as doors and windows or curtain walls, have better aging resistance. The most typical failure of laminated glass PVB and SGP is the opening of the glue. Opening the glue means that the glass and the spacer layer are disengaged, losing the safety characteristics of the laminated glass. Regarding the life of PVB and SGP laminated glass, there are currently no relevant standards and specifications in China. At present, domestic glass processing enterprises generally give 5-7 years product warranty period with reference to foreign PVB and SGP supplier related materials.