This is the fourth episode of the most frequently asked questions regarding LandVac Titanium VIG.
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 0.76 millimetre acoustic interlayer and a 1.52 millimetre 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: Vacuum glass that is integrated with both laminated and insulating layers can reach an Rw+Ctr of 40dB.
Note: 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 it is heated to 400 degrees Celsius or above, annealing will occur, causing the surface stress to gradually dissipate.