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NOR-154FSB-2.1-INT
15 X 4mm 1/2 Hr Smoke Seal Intumescent Fire Strip Brown 2.1m Length
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1504 Ss Brown 15 X 4Mm 1/2 Hr Smoke Seal Intumescent Strip 2.1M Length
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| Delivery Time Frame | Delivery Information |
| Next Working Day By 1PM | When an order is placed by 3pm for next working day on certain items |
| Standard Delivery | Usually delivered in 2 to 4 working days |
| Delivery Charges | |
| UK Mainland | Prices start at £3.95 for very small items, £6.50 for small, £9.50 for medium and £20 for large/long items |
| Scottish Highlands & Islands, Northern Ireland & Ireland | Prices from £30, please see our delivery page for more info. |
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Description
15 X 4mm 1/2 Hr Smoke Seal Intumescent Fire Strip Brown 2.1m Length
Ensuring the structural integrity of your fire doors is a critical component of building safety. The 15 X 4mm 1/2 Hr Smoke Seal Intumescent Fire Strip Brown 2.1m Length is engineered to provide a robust line of defence against the rapid spread of fire and toxic smoke. When a fire occurs, every second counts. This high quality hardware remains dormant in standard conditions, waiting to deploy instantly when temperatures rise.
By filling the gap between the door leaf and the frame, this strip prevents the passage of hot gases. It acts as a reliable thermal barrier that maintains the fire resistance rating of your door assembly. Whether you are managing a commercial office block or securing a residential property, this product offers the peace of mind that comes with proven, certified protection.
The Science of Fire Protection and Material Physics
At the heart of this product is an advanced intumescent core containing intercalated graphite. This material is designed to respond to the physical forces generated by extreme heat. When exposed to fire, the core undergoes a rapid chemical reaction, causing it to expand multi-directionally up to 15 times its original volume. This expansion exerts significant pressure against the surrounding door rebate, effectively sealing the gap.
The structural composition of the seal is optimised to prevent premature failure. Because it is mineral based, the material is inherently stable and does not rely on chemicals that might degrade or release harmful fumes under heat. The multi-directional expansion ensures that even if the door frame warps or twists under the intensity of the fire, the seal fills the voids completely. This prevents the flow of oxygen to the fire source and keeps the door held firmly in its frame throughout the critical 30-minute window.
Operational Workflow for Proper Installation
Achieving the maximum level of safety depends on precise installation. You should always consult the door manufacturer documentation before proceeding, as different doors have specific rebate requirements. Follow this sequence to ensure the hardware is seated correctly for long term performance.
- Identify the correct rebate location on your door or frame to ensure the seal sits centrally.
- Use a professional router to create a clean channel that matches the width and depth of the 15 x 4mm dimensions.
- Remove all dust and wood shavings from the channel using a vacuum or brush because debris can affect the bond of the adhesive.
- Cut the seal to the exact required length using a fine toothed hacksaw or a sharp utility blade to ensure a flush finish at the joints.
- Verify that the profile does not protrude beyond the surface of the timber, as this could impede the smooth closing of the door.
- Peel away the protective strip to reveal the high tack adhesive backing and press the seal firmly into the rebate starting from one end and moving steadily to the other.
By following these steps, you create a seamless barrier that integrates perfectly with your existing woodwork. The self-adhesive backing is designed for immediate secure attachment, saving time during onsite assembly while ensuring the profile remains locked in place for decades.
Ergonomic Health, Safety and Regulatory Compliance
In modern facility management, health and safety regulations demand that all passive fire protection measures are kept in top condition. This hardware is manufactured to the highest standards, meaning it is safe to handle during the installation process as it contains no fibrous materials. This reduces the risk of respiratory irritation for contractors and maintenance teams.
Choosing a certified product ensures you remain compliant with industry benchmarks. Because the seal is unaffected by humidity, atmospheric pollution, and typical household chemicals, it maintains its effectiveness without needing constant adjustment. This reduces the administrative and physical burden on building managers who need to maintain safety registers. By installing this item, you are making a conscious choice to prioritise the safety of all occupants while ensuring your facility adheres to essential fire safety protocols.
Commercial ROI and Long Term Value
Investing in premium fire protection is a sound financial strategy for any property owner. While cheaper alternatives might seem attractive initially, the superior durability of this model means it will not require frequent replacement. Laboratory ageing tests suggest a life expectancy exceeding 100 years, assuming the seal remains undisturbed.
Quality assurance note: Each length of this seal features unique identification to ensure full traceability throughout its operational life. This transparency is vital for fire safety audits and long term building maintenance planning.
Over the lifespan of a door, the cost of labour to replace faulty or degraded seals often exceeds the cost of the hardware itself. By selecting this high-performance strip, you minimise your maintenance cycles and protect your property assets from fire-related damage. It is an investment in risk mitigation that pays dividends by lowering your insurance liability and safeguarding the structural longevity of your doors.
Testing and Certifire Standards
Our commitment to safety is evidenced by the rigorous testing performed on this model. It has been assessed against the requirements of technical schedules TS35 and TS21, ensuring it meets the most demanding performance criteria for fire and smoke control. The certification proves that the material is capable of maintaining a tight seal under high-pressure fire conditions.
- It has been tested to BS 476 part 22 which covers the fire resistance of doors.
- The smoke leakage performance has been verified under BS 476 part 31.1 to prevent gas movement.
- It holds Certifire approval under reference CF846, providing independent verification of the quality and reliability of the unit.
Technical Specifications
Key Data Table
| Specification | Detail |
|---|---|
| Dimensions | 15mm wide by 4mm thick |
| Length | 2.1 metres |
| Brush Pile Height | 5.5mm |
| Material | High quality polypropylene and intercalated graphite core |
| Fire Rating | FD30 Half hour rating |
| Testing Standard | BS 476 Part 22 and Part 31.1 |
| Certification | Certifire CF846 |
| Fixing Method | Self-adhesive backing |
Applications and Usage
This versatile seal is suitable for a wide variety of timber door configurations. Whether you are installing it on a single leaf door for an apartment entrance or a double leaf configuration for a fire exit, the profile is designed to offer consistent performance. The inclusion of a 5.5mm brush pile helps to block smoke particles effectively, even before the intumescent core is triggered by high temperatures.
We recommend installing this on the vertical jambs and the head of the door frame. You do not need to apply this to the floor, as the natural accumulation of heat will trigger the overhead and side seals to create a complete and secure chamber. If you have specific questions about the compatibility of this item with your current setup, please contact our friendly team today.
Do not compromise on the safety of your building or the people who use it. By choosing our tested, durable fire and smoke seals, you are ensuring that your doors stand ready to perform in an emergency. With simple installation and long-lasting material properties, it remains the gold standard for fire safety hardware.
Specification
| Manufacturer | Firestop |
|---|---|
| Finish | Brown |