🔥 TL-X Achieves UL 94 5VA Certification: A Milestone in Fire Safety
- TL-X

- Jun 9
- 2 min read
Updated: Aug 6
✅ Announcement of UL 94 5VA Certification
At TL-X, we’re proud to announce that our antimony-free, eco-friendly flame retardant has passed the highest tier of the UL 94 flame classification system: UL 94 5VA certification, certified by the Korea Ceramic Technology Institute in March 2024.
But what does this mean? Why should it matter to anyone involved in battery systems, electric vehicles, construction, or industrial materials?
🧪 Understanding the UL 94 Certification Test Tiers
Here’s a breakdown of UL 94 flame resistance classifications—from the most basic to the most extreme:
| Classification | Orientation | Flame Behavior Allowed | Hole Formation | Application Level |
|----------------|-------------|-----------------------|----------------|-------------------|
| HB | Horizontal | Slow burning on horizontal specimen | Allowed | Low-risk |
| V-2 | Vertical | Burning stops within 30 sec; flaming drips allowed | No holes in specimen | Moderate-risk |
| V-1 | Vertical | Burning stops within 30 sec; non-flaming drips | No holes in specimen | Moderate-risk |
| V-0 | Vertical | Burning stops within 10 sec; no flaming drips | No holes in specimen | Higher-risk |
| 5VB | Vertical (bar test) | Burning stops; no flaming drips | Holes may form | High-risk |
| 5VA | Vertical (bar test) | Burning stops; no flaming drips | No holes allowed | Highest-risk |
✅ TL-X’s Material Achieved UL 94 5VA Certification
TL-X’s material achieved 5VA—the most rigorous classification available. This means:
It withstood five direct flame applications.
It self-extinguished within 60 seconds.
It showed no structural damage or hole formation.

This isn't just a pass—it’s the highest grade of fire resistance recognized globally.
🚗 Real-World Applications for 5VA Materials
Passing the 5VA test allows TL-X’s materials to be used in critical fire-prone environments, such as:
EV battery pack liners and enclosures
ESS housing and containment layers
Interior materials for buildings and vehicles
Data centers and UPS infrastructure
These are sectors where traditional flame retardants often fail. Seconds of performance under fire can prevent catastrophic loss.
🟢 Safe, Sustainable, and Ready for Regulation
Unlike legacy flame retardants that rely on toxic elements like antimony, TL-X’s solution is:
Antimony-free
Non-toxic and halogen-free
Certified by an independent testing body
Ready for international compliance and export
The result is not just performance under pressure, but safety without compromise.
🔍 Summary
UL 94 5VA Certification is the most demanding flammability standard for plastics.
TL-X’s flame retardant passed with top marks—no burn-through, no holes.
The solution is eco-safe, regulation-ready, and ideal for critical EV, ESS, and construction use.
This isn’t theory—it’s tested, certified performance at the highest level.
🌍 Looking Ahead: The Future of Fire Safety
As industries evolve, the demand for safer materials grows. The integration of high-performance fire resistance into various applications is crucial. TL-X is at the forefront of this movement, ensuring that safety and sustainability go hand in hand.
Looking to integrate high-performance fire resistance into your platform?
👉 Contact TL-X for certifications, samples, or partnership inquiries.
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