An all-polycarbonate panel scratches and sags on a large exterior opening. A glass clad polycarbonate glazing fixes that: the glass gives a hard, scratch-resistant outer surface and the polycarbonate core stops the impact.
Two materials, one rated panel
The glass layer on the attack side resists abrasion, weather and repeated cleaning, so the panel stays clear outdoors. The polycarbonate core behind it absorbs the impact of a round or a blow, stopping the projectile without the glass spalling inward. The build is heavier than all-polycarbonate, which is why it suits larger, higher-traffic openings where appearance and durability matter. The two layers have to be bonded as one unit so the edge anchor holds both, and the composite is tested to a UL level as a whole.
When the composite build wins
- Glass outer layer for scratch and weather resistance.
- Polycarbonate core for impact and ballistic absorption.
- Bonded as one unit so the anchor holds both layers.
- Composite tested to a UL level as a whole.
How the composite panel is put together is covered in the glass clad polycarbonate glazing composite panel guide, and how PC compares with glass for security in bullet resistant polycarbonate vs glass.
Frequently Asked Questions
Q: Why use glass clad instead of all-polycarbonate glazing?
A:The glass outer layer resists scratches, weather and cleaning while the polycarbonate core stops the impact. All-polycarbonate can scratch and sag on large exterior openings, which the glass surface avoids.
Q: How is glass clad polycarbonate glazing rated?
A:The two layers are bonded as one unit and the composite is tested to a UL level as a whole. The edge anchor holds both layers, so the whole opening has to be rated together.
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.