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Intumescent Fire Pillows
Intumescent Fire Pillows are flexible, compressible fire stopping products used to seal openings in fire-rated walls and floors where services such as cables, conduits, or pipes pass through. As part of a building’s wider passive fire protection strategy, they are designed to reinstate fire compartmentation by expanding when exposed to high temperatures. In the event of fire, the pillows swell and form a dense, insulating barrier that helps prevent the spread of fire, smoke, and hot gases. These pillows are particularly useful in situations where frequent changes or maintenance to services are expected, as they can be easily removed and reinstalled without damaging surrounding structures.
Astroflame X-Series Intumescent Fire Pillows
Designed to provide an effective fire barrier, on a temporary or permanent basis, for services which are subject to frequent changes or replacement. Pillows can be added, removed or rearranged in an aperture to accommodate to the needs of the situation and have been tested with metallic pipes, cables, cable bunches, cable trays and cable...
Quelfire QFP QuelStop Intumescent Fire Pillows
Help prevent the spread of fire through metal cable trunking systems that penetrate through flexible and rigid fire compartment walls, with up to 60 mins integrity. Can be used inside steel cable trunking up to 150x150mm where they penetrate fire compartment walls.
FSi S-Line Fire Pillows
Creates a temporary or permanent fire barrier around all types of services to prevent the passage of fire through a compartment wall or floor, especially suitable where services are continuously being changed or replaced. Assumed working life 25 years For internal use Fire Resistance EN 1366-3 EI 120 and BS 476 - 240mins Fire...
Rockwool Intumescent Pillows CE
Intumescent material encased within a waterproof glass cloth bag. They are designed to create a temporary or permanent fire seal around all types of services to maintain continuity of fire performance of compartment walls. They are an ideal solution for applications where services are required to be changed or replaced on a regular basis....
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Intumescent Fire Pillows for Flexible Fire Compartment Sealing
Intumescent Fire Pillows are ideal for reinstating fire performance in compartment walls and floors where services penetrate fire-rated barriers. They work in tandem with other passive fire protection systems, such as door upgrade kits, helping ensure full compartment integrity even when services are regularly altered. These pillows are a preferred choice in situations requiring future flexibility, as they can be inserted and removed without disturbing permanent fire seals.
During a fire, the pillows activate at elevated temperatures, expanding to fill voids around cables, conduits, and other penetrations. This rapid expansion forms a resilient, fire-resisting seal that slows down the spread of flames, heat, and smoke. When tested as part of an approved system, they contribute to achieving integrity and insulation performance to match the fire-resisting requirements of the wall or floor in which they are used.
Designed for compatibility with dry-lined, block, and concrete construction, these products offer fast, dry installation and avoid the need for curing time. This makes them well suited for data centres, commercial plant rooms, and any setting where operational continuity is vital. When correctly selected and installed, Intumescent Fire Pillows support compliance with UK Building Regulations and industry best practices for passive fire protection.
Intumescent Fire Pillows FAQs
Can intumescent fire pillows be reused after removal?
Yes, they are designed to be removed and reinstalled, provided they are undamaged and their original performance criteria are preserved.
Do fire pillows provide both integrity and insulation performance?
They can contribute to both, but performance depends on the full tested system. Always refer to the manufacturer’s field of application documentation.
Are fire pillows suitable for floor penetrations as well as walls?
Yes, they are tested and approved for use in both horizontal and vertical applications, provided the substrate and conditions match the tested specification.
How do fire pillows react during a fire?
They expand in response to heat, forming a dense char that seals openings to resist the spread of fire, hot gases, and smoke.
What standards do they comply with in the UK?
Performance is validated through fire resistance testing and/or assessments aligned with standards such as BS 476 or EN 1366, depending on the product system.