School Security Film Comparison | FSJ Tactical
Compare Security Film for Schools: Film vs. Polycarbonate vs. Bullet Resistant Glazing
School leaders hear a lot of claims about "bullet proof window film." FSJ Tactical breaks down what security film, polycarbonate security glazing, and bullet resistant glazing really do for school safety.
Every school safety committee eventually asks the same question: "Should we put security film on our windows?" The answer depends on what you expect it to do. This comparison explains, in plain language, what security film, polycarbonate security glazing, and bullet resistant glazing can and can't do for schools.
The Short Answer
- Security film delays. It holds broken glass in place and slows entry.
- Polycarbonate security glazing denies. It keeps an attacker out even after the glass breaks.
- Bullet resistant glazing stops bullets. It's the only option with a UL 752 ballistic rating.
All three have a place on a school campus. The key is putting each one where it belongs.
Side-by-Side Comparison
| Standard Safety Film | RiotLite Security Film | DefenseLite Shield | DefenseLite Pro | BulletShield | |
|---|---|---|---|---|---|
| What it does | Holds glass together | Delays entry | Denies access | Prevents forced entry | Stops bullets + forced entry |
| Forced-entry testing | Typically none | ASTM F3561 Level 3 (system) | Access denial | ASTM F3561 Level 8 | ASTM F1233 |
| Ballistic rating | None | None | None | None (glass stays in place) | UL 752 |
| Hurricane / blast | Limited | Holds fragments | Impact resistant | Miami-Dade zone 5; ASTM F1642 | Miami-Dade zone 5; ASTM F1642 |
| Appearance | Clear | Optically clear | Nearly invisible | Nearly invisible | Nearly invisible |
| Relative cost | $ | $$ | $$$ | $$$$ | $$$$$ |
| Best school use | Not recommended for security | Classroom windows, interior glass | Sidelights, ground-floor windows | Main entry, vestibule, side entries | Main entry, vestibule, front office |
The Truth About "Bullet Proof Window Film"
Some vendors market security film as bullet proof. Standard security window film is not ballistically rated unless it's applied to glass that's already certified bullet-resistant. In comparative 5-aa1 testing, a bullet penetrated tempered glass with security film, but the film kept the glass in place. Then the filmed glass failed after 20 brick impacts.
That doesn't make film useless. It makes it a delay layer, which is why RiotLite is engineered as a system with mechanical attachment and independently tested to ASTM F3561 Level 3.
Why Polycarbonate Changes the Equation
DefenseLite polycarbonate is about 250 times stronger than glass. Mounted on a vented extrusion in front of the existing glass, it flexes and absorbs energy rather than breaking. In the same 5-aa1 test series, DefenseLite Pro passed the ballistic impact (glass stayed in place), brick, steel-toed boot, and tool attacks, then withstood 4 minutes 5 seconds of continuous bat and sledgehammer assault. In an active-shooter event, minutes like that make the difference.
When Schools Need Bullet Resistant Glazing
Where an attacker is most likely to approach and fire, such as the main entry, secure vestibule, and front office, BulletShield provides UL 752 ballistic protection along with forced-entry resistance. Pair it with bullet-resistant transaction windows for reception staff and AccessShield door re-glazing.
A Smart School Plan
| School Zone | Recommended Option |
|---|---|
| Main entry, vestibule, front office | BulletShield + transaction windows |
| Side entries and sidelights | DefenseLite Pro or DefenseLite shield |
| Ground-floor classroom windows | DefenseLite shield or RiotLite film |
| Interior glass and corridor windows | RiotLite film |
| Classroom doors | AccessShield, bullet-resistant doors, Safe Slideout |
| Shelter rooms | SafeSuite |
Get an honest school security recommendation. FSJ Tactical will assess your campus and show you exactly what each option will and won't do before you invest.
Security Film + Glazing
See It Stop a Threat: FSJ Tactical Live Fire Demos
Request a live fire demonstration of our products on any existing drywall or glass.
Peace of Mind: Installed
Recent FSJ Tactical projects for school districts, cities, and counties. Over 500,000 square feet protected.
Installation available in every state
NATURAL DISASTERS
Security film and polycarbonate glazing hold glass in place against storms, debris, and blasts.
CRIME
Forced-entry and ballistic protection delays attackers and buys time for law enforcement to respond.
PEACE OF MIND
FSJ Tactical protects occupants and assets with an industry-leading warranty and nationwide installation.
Frequently Asked Questions
Does bullet proof window film stop bullets in schools?
No. Security film on ordinary glass does not stop bullets. In testing, a bullet passes through filmed glass, but the film holds the glass in place so an attacker can't easily climb through. That delay is valuable, but it is not ballistic protection.
What's the most cost-effective school security upgrade?
For most schools, the most cost-effective plan combines BulletShield or DefenseLite Pro at the main entry and vestibule with RiotLite film or DefenseLite shields on classroom windows and sidelights. Concentrating the strongest protection where an attacker will approach stretches the budget furthest.
How long does security film delay an intruder?
It depends on the film, thickness, attachment, and attack. In 5-aa1 testing, tempered glass with security film failed after 20 brick impacts. DefenseLite Pro passed brick, boot, and tool attacks and withstood 4 minutes 5 seconds of bat and sledgehammer assault before a breach.
Should classroom door lites be filmed or re-glazed?
Film can slow entry through a door lite, but AccessShield re-glazing replaces the lite with polycarbonate or glass-clad panels (0.25" to 1.25") with UL 752 ballistic options. Safe Slideout and Safe Shutter products can also block the line of sight.
Let's talk about your project...
Talk with the FSJ Tactical team about a site assessment. We'll walk your building, identify the glass and doors at highest risk, and recommend the DefenseLite security glazing level that fits your threats and your budget.
