This EI120 fire resistance test was conducted for a real project application, related to the Hong Kong International Airport third runway development.

The objective was to validate the performance of a complete fire-rated system under realistic installation conditions, rather than a standalone material test.

In this project, fire-rated glazing is applied in multiple scenarios, including skylight systems, fire-rated skylights, fire-rated glass skylights, fire-rated glass doors, and fire-rated glass partition systems.

This test focuses on validating the fire performance of the fire-rated glazing system under conditions aligned with these real application scenarios.

In fire-resistant glazing, performance depends on the entire system — including glass, framing, sealing, and installation — especially under real fire conditions.

This test was conducted as a full system verification prior to project delivery, ensuring that the fire-rated glazing solution performs reliably under standard fire curve exposure.

Test Overview

The EI120 classification requires both integrity (E) and insulation (I) to be maintained for 120 minutes. During the test, the system was exposed to rapidly increasing furnace temperatures in accordance with the standard fire curve.

Key observations:

- No flame penetration observed throughout the entire duration  
- Structural stability of the glass maintained under continuous thermal stress  
- Backside temperature controlled within insulation requirements  
- No system failure at critical stages approaching 120 minutes  

These results confirm that the system not only meets EI120 requirements, but also demonstrates consistent performance under real fire conditions.

System-Based Approach

This test highlights an important principle:

Fire-resistant performance is not achieved by glass alone.

A system-based installation approach — including correct framing, sealing, and assembly — is essential to ensure complete fire protection.

At Kinguard, our focus is not only on developing fire-resistant glass, but on delivering fully verified system solutions that can be applied reliably in real projects.

Applications

EI-rated fire-resistant glass systems are widely used in:

- Fire doors and vision panels  
- Commercial and public buildings (airports, hospitals, schools)  
- High-performance fire-rated partitions  

Watch the Test Video:

https://youtu.be/9JItIzel9jQ

Conclusion

For fire door manufacturers, system companies, and project stakeholders,  
the real value lies not only in certification, but in long-term system reliability.

Kinguard continues to focus on engineering fire-resistant glass systems designed for real-world performance.