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Comment by jibcage | Hacker News Reader

From my armchair, it sounds like the glass manufacturing might be rushed. How frequent is this a problem with other car manufacturers?

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I'm sitting in an office chair, not an armchair, but I'm thinking the steel frame it was glued to flexed. The inside pressure theory doesn't make sense. Modern cars are well sealed, but you still have flaps at the back of the car to let air out, and they are loose enough to let air in.

Not an expert, but my understanding is that tempered safety glass (which the rear/side windows are made of, vs laminated like windshields) is under a lot of internal pressure/strain. And that that's one of the reasons that when it goes, it really goes.

Might be interesting to see if this phenomenon applies to Model X and S, as they should theoretically be totally sealed to enable the Bioweapon Defense Mode.

> they should theoretically be totally sealed to enable the Bioweapon Defense Mode.

Isn't bioweapon defense mode HEPA filter plus overpressure, not a totally sealed cabin?

Seems unlikely Tesla make their own glass, probably just buy it from the same place other manufacturers do.

Tesla glass is made by Saint-Gobain:

https://electrek.co/2019/09/26/tesla-model-3-body-in-white-g...

"Saint-Gobain, a long-term glass supplier for Tesla, established a factory in the Lingang industrial zone to supply Tesla for the Chinese-made Model 3 vehicles and it plans to start mass production on October 14 to match Tesla.

Ma Jun, head of Saint-Gobain Sekurit’s Lingang factory, commented: (...)"

Also found in the USA:

https://www.linkedin.com/in/stephanvoisin/ "Stéphan Voisin Business Director TESLA at Saint-Gobain Sekurit Los Angeles Metropolitan Area"

It wasn't common until the last few years according to sources in other comments here. Since 2016 it has become more common in a variety of brands.

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