The short answer to “can polycarbonate stop a bullet” is yes — but the honest answer is more useful: only at the right thickness, in the right construction, and for a specific threat. A thin clear sheet will not stop a rifle round any more than glass will, and treating it as if it might is dangerous.
What decides whether PC stops the round
Polycarbonate stops bullets because it is extremely tough and absorbs energy by deforming instead of shattering, but the thickness has to be enough to absorb the round’s energy before it exits. A ballistic PC panel is usually much thicker than a glazing sheet, often laminated or reinforced, and rated by test for a defined threat. So “polycarbonate is bullet resistant” and “this specific PC panel is rated to stop a .44 Magnum” are two very different statements.
Turning the question into a spec
- Name the threat: handgun, shotgun or rifle.
- Match the panel thickness and build to that round.
- Require a tested rating, not a general claim.
- Confirm spall control behind the panel.
For how thick PC must be to stop what, see bulletproof polycarbonate sheet UL 752 levels and thickness, and for the material comparison, polycarbonate versus glass for security glazing.
Frequently Asked Questions
Q: Can any polycarbonate sheet stop a bullet?
A:No. Only a PC panel of the right thickness and build, rated by test for a specific threat, will stop the round; a thin glazing sheet will not stop a rifle.
Q: Why is polycarbonate good for bullet resistance?
A:PC is extremely tough and absorbs energy by deforming instead of shattering, but the thickness must be enough to absorb the round’s energy before it exits.
For a ballistic or security glazing quote with the threat level and panel size, email oversales@rpplexiglass.com with the location, threat and panel dimensions.