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:
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Safe evacuation
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Firefighter access
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Reduced structural damage
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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:
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At normal temperatures: the seal remains compact and discreet
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Under fire exposure: the material expands dramatically
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Expansion fills door gaps to block flames and hot gases
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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:
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Automatic drop-down sealing when the door closes
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Tight contact with the floor threshold
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Smoke containment
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Fire resistance performance verified up to 150 minutes
This product not only improves fire resistance but also enhances:
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Smoke control
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Sound insulation
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Energy efficiency
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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:
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RESSA intumescent seal
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RESSA fire-rated automatic door bottom
Successfully maintained:
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Structural integrity
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Insulation performance
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Flame containment
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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:
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Commercial buildings
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Office complexes
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Residential apartments
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Hotels
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Hospitals
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Public facilities
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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:
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Fire-rated intumescent strips
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Smoke seals
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Automatic door bottom seals
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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.
