[cronix]

> It is trivial to secure windows with plastic foil, glass will literally become bullet proof.

Here's some $50k windows that Nordstrom in Seattle was using that used that film. The windows couldn't stand up to Antifa with hammers, which makes me question the bulletproofness claim. It might not be the same exact stuff that you're claiming, but I'm guessing it is due to the description ("due to their thickness and a protective film that internally self-adheres after strikes or damage"), and that this has happened numerous times to them in the last year and I'm sure they're tired of replacing them and went for the best, strongest windows they could. $50k-70k EACH seems quite expensive for a single display window.

https://www.seattletimes.com/seattle-news/crime/downtown-nor...

[sleepybrett]

Having worked on those very windows. They are also expensive because of other films and treatments to that glass that filter certain light that damages the items displayed behind it. Also they are just really big pieces of thick glass.