Safety film
Thinner clear film (often 4–7 mil) that keeps glass from breaking into flying shards after an impact, storm debris or an accident. Common in homes, offices and full-height glass.
Security film
Thicker film (often 8–15 mil or more), such as 3M Ultra S800 and S140. Paired with an attachment system that bonds the film to the frame, it makes smash-and-grab and forced entry slow and loud. Common on school entries, storefronts and lobbies.
Bullet-resistant film systems
Systems like C-Bond BRS combine a glass-strengthening treatment with multi-layer film and an edge anchor. Protection claims depend on the exact tested system and standard (for example UL 752 or NIJ levels) — always ask for the test report for the system being installed.
Comparison
- Holds broken glass: safety ✔, security ✔, bullet-resistant system ✔
- Slows forced entry: safety limited, security ✔ (best with attachment), bullet-resistant system ✔
- Resists bullets: safety ✘, security ✘, bullet-resistant system — only to its tested rating
Which one is right?
Homes usually need safety or security film. Schools and businesses worried about break-ins choose security film with attachment. Banks, courthouses and high-risk sites look at a tested bullet-resistant system. We'll walk your building and recommend in writing.
Last updated October 16, 2026