Innovation & Tech
2 min read
05/09/2025
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Across the country, schools and public buildings are under pressure to strengthen their defenses. One solution that has gained attention in recent years is window film—a thin polyester layer applied to existing glass and marketed as a way to keep intruders out.
On the surface, it seems appealing. Films are relatively inexpensive compared to new security glazing, and in live demonstrations they can look surprisingly tough. A rock might bounce off, or a bat might fail to break through right away. But when those demonstrations give the impression of true ballistic or forced-entry protection, they’re painting an incomplete picture.
Window Films: The Reality Behind the Pitch
Independent investigations have shown that window films don’t perform when faced with real threats. Lawmakers in Utah, for example, witnessed film-coated glass shatter under gunfire in a live test. The largest film manufacturers openly state that their products are not bullet resistant and do not meet ballistic standards.
Still, school districts across the country have invested heavily in films—over $100 million in recent years. Some sales demonstrations rely on outdated or thicker glass than most schools actually use, creating results that don’t reflect real-world conditions. Industry experts have warned that this leaves administrators vulnerable to exaggerated claims and misplaced confidence.
The bottom line: window films are not designed to stop bullets. At best, they may slightly slow down an intruder, but they cannot provide the kind of verified protection parents and educators expect.
How CHILDGARD® Security Glass Stands Apart
CHILDGARD® laminated security glass was developed with one purpose: protecting schools and other vulnerable facilities from forced entry. Unlike films, which are applied after the fact, CHILDGARD® is engineered from the start as a protective glazing system.
- Built with multiple interlayers bonded under heat and pressure.
- Designed to withstand repeated physical attacks.
- Independently tested to recognized forced-entry standards.
- Backed by certifications and documented performance data.
This is not a quick fix. CHILDGARD® is a long-term security solution created to give teachers, students, and staff the precious time they need until help arrives.
Why Choosing the Right Solution Matters
When lives are on the line, the distinction between window film and true protective glass makes all the difference. Films may look attractive because of their lower price, but they were never created to meet the demands of an armed attack. CHILDGARD® provides proven protection that has been tested and certified to perform when it matters most.
In an era when schools face increasing pressure to safeguard their communities, real security requires more than appearances. It requires solutions that are engineered, tested, and trusted.
Looking Ahead
Window films might seem like an easy answer, but the evidence shows they fall short in real scenarios. CHILDGARD® laminated glass offers peace of mind because it’s built for one thing: keeping people safe when every second counts.
See the Wall Street Journal’s perspective on this topic.
Schools Squander Millions to ‘Bulletproof’ Windows. It Doesn’t Work.
