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FlexiFire is a high-performance intumescent material developed to protect ironmongery within a fire door assembly. When exposed to heat, the graphite core activates at 180°C, expanding to insulate and seal.
Engineered for use behind hinges, locks, latches and door closers, FlexiFire strengthens weak points within the fire door installation, helping maintain fire safety performance under BS EN test conditions.
Provides tailored intumescent protection for varied hardware protection and specification requirements.
Suitable thickness options for 30 and 60-minute certified fire door applications.
Expands under heat to fill rebates and voids, forming protective insulating char.
Independently certified by International Fire Consultants Ltd (part of the KIWA group) for assured compliance.
Each intumescent protection kit features traceability print for complete specification confidence.
FlexiFire is totally inert and tested to BS 476 & EN 1634-1, with our durable intumescent material ensuring long-term fire protection performance.
FlexiFire HP is an extruded flexible PVC-based intumescent sheet designed for minimal void applications such as intumescent hinge pads and door viewers. With the lowest graphite loading in the range, it expands over six times its original thickness.
FlexiFire HS is a flexible pvc intumescent material precision-cut for locks, latches and door closers. Offering expansion ratios exceeding fifteen times its original volume, it delivers robust intumescent protection for rebated hardware.
FlexiFire HE features the highest graphite content for large aperture hardware protection. Designed for letterplates and light fittings, it expands over twenty times its original volume, forming a strong insulating char barrier.
| FlexiFire HP | FlexiFire HS | FlexiFire HE | |
|---|---|---|---|
| Expansion Ratio | 6x+ | 15x+ | 20x+ |
| Application Type | Hinges | Locks/Latches | Large Aperture |
| Material Type | PVC Extruded | PVC Extruded | PVC Extruded |
| Certification | IFC Certified | IFC Certified | IFC Certified |
| Traceability | Printed | Printed | Printed |
Find the answers to the most frequently asked questions on FlexiFire, our graphite-based intumescent sheet material that offers high levels of expansion and insulation and prevents heat transfer on rebated hardware.
Contact UsIntumescent hardware protection uses expanding graphite-based material to seal around door hardware, preventing heat transfer through weak points in a fire door assembly.
FlexiFire is installed behind hinges, locks, latches, door closers and other ironmongery within a certified fire door during fire door installation.
Yes. FlexiFire is 3rd party certified for hardware protection through IFC (International Fire Consultants Ltd), supporting compliance and specification requirements.
FlexiFire has been tested to BS 476:22 and EN 1634-1 fire door standards, supporting BS EN performance requirements for fire protection.
Yes. FlexiFire intumescent products are available in multiple grades, thicknesses and formats, including intumescent hinge pads and lock protection kits.