When it comes to fire safety, performance under real fire conditions matters more than anything else.
We are proud to announce that RESSA fire-rated intumescent seals and automatic door bottom seals have successfully passed a 150-minute fire resistance test, demonstrating exceptional performance in extreme fire conditions.
This achievement reinforces RESSA’s commitment to delivering reliable passive fire protection solutions for commercial, residential, and industrial buildings.
Why a 150-Minute Fire Rating Matters
In many fire incidents, the critical factor is time.
Time allows:
Safe evacuation
Firefighter access
Reduced structural damage
Better containment of smoke and flames
A 150-minute fire resistance rating means that the tested door assembly maintained its integrity, insulation, and fire containment capability for two and a half hours under controlled fire conditions.
This level of performance significantly exceeds the basic requirements for many standard fire doors.
RESSA Fireproof Intumescent Seal – Advanced Expansion Technology
The RESSA intumescent fire seal is engineered to react instantly when exposed to high temperatures.
How It Works:
At normal temperatures: the seal remains compact and discreet
Under fire exposure: the material expands dramatically
Expansion fills door gaps to block flames and hot gases
Prevents fire spread through door edges
Key Advantages:
✔ High expansion ratio
✔ Stable and uniform char formation
✔ Excellent adhesion to door frames
✔ Suitable for timber and steel fire doors
By sealing critical perimeter gaps, the intumescent strip plays a vital role in maintaining fire door integrity.
RESSA Automatic Door Sweep Seal – Integrated Fire Protection
Unlike conventional door sweeps, RESSA’s fire-rated automatic door bottom seal is designed to provide:
Automatic drop-down sealing when the door closes
Tight contact with the floor threshold
Smoke containment
Fire resistance performance verified up to 150 minutes
This product not only improves fire resistance but also enhances:
Smoke control
Sound insulation
Energy efficiency
Draft protection
It is ideal for commercial buildings, hospitals, schools, apartments, and high-rise projects where strict fire safety compliance is required.
Tested Performance Under Real Fire Conditions
During the 150-minute fire resistance test, the door assembly equipped with:
RESSA intumescent seal
RESSA fire-rated automatic door bottom
Successfully maintained:
Structural integrity
Insulation performance
Flame containment
Controlled temperature rise on the non-fire side
This proves that RESSA sealing solutions can effectively delay fire spread and protect escape routes.
Applications
RESSA fire-rated sealing solutions are suitable for:
Commercial buildings
Office complexes
Residential apartments
Hotels
Hospitals
Public facilities
Industrial projects
Wherever fire doors are installed, proper sealing is essential for code compliance and life safety.
Why Choose RESSA?
At RESSA, we focus on providing high-performance passive fire protection solutions, including:
Fire-rated intumescent strips
Smoke seals
Automatic door bottom seals
Fire door sealing systems
Our products are engineered to meet international fire testing standards and deliver consistent, reliable performance.
A fire door is only as strong as its sealing system — and RESSA ensures that every gap is protected.
Conclusion
Fire safety is not just about meeting minimum requirements — it’s about providing real protection when it matters most.
With a proven 150-minute fire test result, RESSA fire intumescent seals and automatic door bottom seals offer dependable, high-level fire resistance performance for demanding applications.
If you are looking for certified, high-performance fire door sealing solutions, RESSA is ready to support your project.
