When pursuing ultimate silence and high-strength architectural glass solutions, many fall into the trap of believing "thickness equals performance." Through three sets of core technical Q&As, this article presents real-world data on vacuum glass acoustic configurations, composite structure limits, and sealing temperature red lines to break industry misconceptions and provide a scientific material selection reference.

Q: Is the relationship between the thickness of an acoustic interlayer and its sound insulation performance linear?

A: The improvement in acoustic performance provided by an acoustic interlayer is not a linear progression. For instance, a 0.76mm acoustic interlayer and a 1.52mm acoustic interlayer provide essentially the same level of improvement in sound insulation.

Q: From an acoustic perspective, what configuration is required for vacuum glass to achieve Rw+Ctr ≥ 40dB?

A: For vacuum glass products combined with insulating (IGU) and laminated layers, the (Rw+Ctr) can reach 40dB.

Eg: A configuration such as 6+1.52PVB+6+20A+6+0.3V+6 achieves a measured sound insulation of 45 (-1;-5) dB.

Q: At what temperature does the edge sealing of tempered vacuum glass begin to affect glass stress changes?

A: Regarding tempered glass, when heated above 400°C, annealing occurs, and the surface stress will gradually disappear.