Q2: How can we differentiate the quality and performance of VIG from different manufacturers?

A: Quality can be assessed through the following methods:

Thermal Performance: The primary metric is the U-value. This can be precisely measured by professional testing equipment or simplified through a boiling water test.

Support Structure: Check the support spacers. If the support spacers are fixed using simple sintering (fusing) techniques, it can pose significant safety risks due to stress concentrations.

Craftsmanship: For general users, visual inspection is a good indicator of manufacturing standards. Details such as the quality of glass edge grinding, the uniformity of the edge seal, and internal cleanliness reveal the manufacturer’s process control, production capability, and quality management standards.