The most common ballistic question in retail and banks is 9mm. A 9mm bullet resistant polycarbonate panel, matched to UL752 Level 1, stops that round without spalling — but only if it is the right build in the right frame.
Match the 9mm threat to a Level 1 build
UL752 Level 1 stops 9mm full metal jacket handgun rounds, which covers the threat most cashier lines and small storefronts face. The panel build is thick enough and layered enough to stop the round and hold the projectile without throwing fragments. The test report has to show the exact panel and the level it met. And the frame has to hold that panel, because a Level 1 panel in a weak frame can push out at the edge. A rated 9mm panel is only as secure as its installation.

The three parts of a 9mm-rated opening
- A UL752 Level 1 build that stops 9mm rounds.
- A test report showing that exact panel and level.
- A frame that holds the panel at the edge.
- PC or acrylic grade chosen for the application.
How the ballistic panel is selected for banks is covered in the how to select bullet resistant polycarbonate guide, and the Level 1 detail in UL 752 ballistic ratings explained.
Frequently Asked Questions
Q: What does a 9mm bullet resistant polycarbonate panel stop?
A:A UL752 Level 1 build stops 9mm full metal jacket handgun rounds without spalling. The build is thick enough and layered enough to hold the projectile without throwing fragments.
Q: Why does the frame matter for a 9mm-rated panel?
A:A Level 1 panel in a weak frame can push out at the edge under impact. The rated panel and the frame have to be supplied and installed as one system for the opening to actually stop the round.
For a laminated or glass-clad polycarbonate ballistic panel quoted to your threat level, size and frame, email oversales@rpplexiglass.com with the threat class, panel dimensions, frame type and test-report requirement.
