Anti-Buglar Glass
Engineered for enhanced protection, Anti-Burglar Glass resists impact and intrusion for safer residential and commercial environments.
Product Overview:
The P8B classification represents the ultimate level of protection against manual attack under the EN 356 European standard. While lower grades (P1A–P5A) are designed to resist blunt impacts from falling objects, the B-series (P6B–P8B) is engineered to stop “smash and grab” or forced entry attempts using heavy tools like sledgehammers and axes.
Performance Specifications:
The primary metric for P8B glass is its ability to resist the creation of an aperture (opening) through which an intruder could pass.
| Feature | Description |
|---|---|
|
Standard |
EN 356 (Manual Attack Resistance) |
|
Classification |
P8B (Highest Security Grade) |
|
Test Method |
Mechanical Hammer & Axe Strikes |
|
Axe Strike Resistance |
Over 70 Strikes (Total strikes combined with hammer) |
|
Pass Criteria |
No opening of 400mm x 400mm created |
|
Typical Thickness |
Combination of Multiple Ionomers (Developed with Kuraray) |
|
Common Construction |
Multi-layer laminated glass with high-strength interlayers |
Understanding the EN 356 Test Method
The test for P8B is rigorous and mechanized to ensure consistency. It simulates a “worst-case” manual assault:
- The Hammer Attack: A 2kg hydraulically driven hammer head (40mm square) strikes the glass at least 12 times to destroy the outer glass surface and weaken the structure.
- The Axe Attack: A 2kg axe head then strikes the same area. The machine delivers each blow with precise, identical energy. The axe is resharpened every 10 blows.
- The Result: To achieve a P8B rating, the glass must withstand a total of more than 70 strikes without allowing a 400mm square test block to pass through.
Note: While the standard requires “over 70” strikes, premium P8B glass often withstands significantly more (sometimes up to 15-20 minutes of continuous manual assault) before failure.
EN 356 Security Level Comparison
For your website visitors to understand where P8B sits, it is helpful to show the hierarchy:
| Class | Type of Test | Requirement | Attack Simulation |
|---|---|---|---|
|
P5A |
Steel Ball Drop |
9 Drops from 9m |
Vandalism / Opportunistic |
|
P6B |
Hammer & Axe |
30 to 50 Strikes |
Intentional Burglary |
|
P7B |
Hammer & Axe |
51 to 70 Strikes |
Sustained Burglary |
|
P8B |
Hammer & Axe |
> 70 Strikes |
Extreme Threat / High Value |
Key Applications
Due to its weight and high level of protection, P8B is typically specified for:
- High-end jewelry displays and luxury retail storefronts.
- Museums and art galleries housing high-value artifacts.
