Ensure your fire doors maintain their structural integrity with our range of Firestop Intumescent Strips & Seals. Designed by UK passive fire protection specialists Firestop, these products are essential for preventing the spread of fire, smoke, and heat through door gaps and hardware cutouts.
This collection features versatile self-adhesive intumescent sheets and universal hardware protection kits tailored for specific ironmongery, including deadlocks, sashlocks, DIN-standard locks, FB1/FB2 locks, and tubular latches. Made from 1mm thick intumescent material, they expand under extreme heat to insulate and protect the door's internal lock prep.
For the bottom of the door, we offer high-performance automatic drop-down seals (including the Applic 38dB, Superior 60, and Trend models). These seals drop down automatically when the door closes, creating an effective barrier against fire, smoke, draughts, light, and acoustic transmission.
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Firestop
Firestop is a UK manufacturer specialising in passive fire protection products for doors and hardware, best known for intumescent seals and intumescent “hardware protection” kits that help fire doors keep their integrity when exposed to heat and smoke. They position the brand around “protecting life and property,” with 25+ years of experience supplying the UK and overseas markets.
What Firestop actually makes (the stuff you’ll see in the trade channel):
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Intumescent fire & smoke seals (the strips that expand in a fire to close the gap between door and frame).
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Intumescent ironmongery protection: sheets/pads/liners used behind or around items like hinges, locks, latches and closers to maintain the fire-rating of the door set.
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Fire-rated ironmongery items such as intumescent letter plates and door viewers, designed so adding openings to a fire door doesn’t ruin the door’s performance.
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Often also stocked as drop-down door seals and related door-bottom sealing hardware for fire/smoke control and acoustic performance.
A detail they stress is traceability: Firestop highlights a traceable production code / certification approach so installers/specifiers can link products back to compliance evidence and batch provenance.
Intumescent Strips & Seals
Our range of intumescent strips and seals is designed to provide critical fire protection by expanding under extreme heat to seal gaps around fire doors, effectively preventing the spread of smoke and flames. Essential for fireproofing both commercial and residential properties, this selection includes versatile self-adhesive sheets, automatic drop-down seals, and pre-cut intumescent kits specifically tailored to protect door ironmongery such as sashlocks, deadlocks, and multi-point locking systems. Tested to meet rigorous FD30 and FD60 standards, these high-quality seals ensure your fire doors maintain their structural integrity and comply with UK safety regulations. View all Intumescent Strips & Seals products
Architectural Hardware > Fire Safety > Intumescent Strips & Seals (9)
