Protection
Glass retention for building windows
Security film is a mitigation layer, not a barrier. Specified properly — with the right thickness and, where appropriate, a wet-glaze or mechanical attachment — it changes how glass behaves under impact. We will tell you plainly what a given assembly can and cannot be expected to do.
Safety & Security Window Film overview
How does security window film work?
Security film is a thicker, tear-resistant polyester layer bonded to the interior surface of the glass. When the glass breaks, the film helps hold the fragments together so the pane tends to stay in the opening instead of collapsing. Where the film is also anchored to the frame with a structural attachment system, the glazing assembly can resist and potentially delay entry longer than untreated glass. Performance always depends on the specific film, glass, frame and attachment used.
What you get
Glass retention on impact
Fragments tend to stay bonded to the film rather than becoming loose shards inside the space.
Added resistance when attached
A structural attachment system ties the filmed glass to the frame, which is what makes a meaningful difference in forced-entry scenarios.
Optically clear options
Clear safety film can be installed without changing the appearance of the opening.
Combines with solar performance
Some products deliver glass retention and solar control in a single film.
What to know before you buy
- Window film is not bulletproof and does not make glazing burglar-proof or bullet-resistant.
- We do not quote guaranteed forced-entry delay times. Any test result applies only to the exact tested configuration.
- Film without an attachment system retains glass but does not anchor the pane to the frame.
- Frame condition, glass type and bite depth all affect what an assembly can achieve.
The assembly
How a glass retention system is built
How the glass-retention system works
Security film helps hold broken glass fragments together. A properly specified attachment system ties the filmed glass to the frame and may increase resistance compared with untreated glass.
The selected glass, film, frame and attachment configuration matters. Film alone doesn't make windows bulletproof or guarantee an entry-delay time; test results apply only to the configuration tested.
Answers
Safety & Security questions
Is security window film bulletproof?
No. Security film is not bullet-resistant and should never be described that way. It is a glass-retention product that helps keep broken glass together and, when properly attached to the frame, can increase resistance to attempted entry.
How long will it hold someone out?
We do not publish delay times. Any credible number comes from a specific tested assembly — a defined film, glass, frame and attachment method — and does not transfer to a different building. Review relevant test documentation for the specific proposed assembly.
Do I need an attachment system?
It depends on your objective. For glass retention against accidental impact and flying fragments, film alone is often sufficient. For forced-entry mitigation, an attachment system that ties the filmed glass to the frame is the component that matters most.
Authorized XPEL VISION DealerXPEL VISION options: Safety & Security
Published XPEL VISION families that relate to this goal. Each page shows documented options, master-sheet values and official specification sheets.
- Safety & SecurityClear and tinted films that help hold broken glass together.8 options · Conditional
These are published XPEL VISION products. We confirm availability, glass compatibility and the exact film in your estimate.
Further reading
Understand the glass before you choose
Get a straight answer and a real number.
Tell us the building, the elevation and the problem. We'll tell you what film makes sense — and what doesn't.