In the past, laminated glass was usually installed in the windshield, with side and rear windows being tempered only.

The difference is that tempered glass is per-stressed so that when it cracks, it shatters into many tiny and dull pieces. Laminated is the same thing, but with layers of plastic sandwiched with layers of tempered glass. Laminated glass will still shatter, but will be held together by the plastic layers.

In an emergency, small improvised, or purpose built tools meant to shatter tempered glass will be useless if the glass is laminated.

  • Fondots@lemmy.world
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    9 months ago

    I don’t know how common they actually are, but I see car window breaker & seatbelt cutter gizmos being sold all over the place. I know I keep one in my car where I can easily get to it, though my car emergency kit is probably better stocked than most people’s, and most first responders also have them in their kit.

    Also an automatic center punch will usually do the trick as well, it’s a fairly common tool, though in an emergency it may not be practical to go rooting through your toolbox to find one.