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Certifire Approved
FD30
FO1504/BK
Pyroplex Fire Only Intumescent Strip, 15mm x 4mm x 2.1m, Black
£2.18 Inc. VAT£1.82 Exc. VAT
2476 in stock Bulk Buy
Certifire Approved
FD30
FS1004/F/WH - Bulk Pack 50
Pyroplex Fire & Smoke Seal Intumescent Strip, Single Fin, 10mm x 4mm x 2.1m, White (Pack of 50)
£93.00 Inc. VAT£77.50 Exc. VAT
77 in stock Certifire Approved
FD30
FS1504/SF/WHT
Pyroplex Fire & Smoke Seal Intumescent Strip, Side Fin, 15mm x 4mm x 2.1m, White
£2.78 Inc. VAT£2.32 Exc. VAT
990 in stock Certifire Approved
FD30
LP1504DS/BLK
Lorient DS (Side Twin Fin) Acoustic Fire & Smoke Intumescent Strip 15x4mm Black
£5.36 Inc. VAT£4.47 Exc. VAT
385 in stock Certifire Approved
IS1212/WH
Lorient LAS1212 Batwing Acoustic and Smoke Seal - 12mm x 12mm - White
£5.70 Inc. VAT£4.75 Exc. VAT
1350 in stock 
ES/SDS/WH
Envirograf Surface Mounted Intumescent Strip Single Doorset - White
£56.72 Inc. VAT£47.27 Exc. VAT
15 in stock Certifire Approved
LAS7001
Lorient LAS7001si Perimeter Smoke Seal 2.1m
£31.58 Inc. VAT£26.32 Exc. VAT
440 in stock Certifire Approved
FD30
FS1004/BR
Pyroplex Fire & Smoke Seal Intumescent Strip, Brush, 10mm x 4mm x 2.1m, Brown
£1.91 Inc. VAT£1.59 Exc. VAT
2807 in stock Certifire Approved
FD60
FO2004/WH
Pyroplex Fire Only Intumescent Strip, 20mm x 4mm x 2.1m, White
£3.22 Inc. VAT£2.68 Exc. VAT
983 in stock Certifire Approved
IS1010/BLK
Lorient LAS1010 Batwing Acoustic & Smoke Seal - 10mm x 10mm - Black
£6.44 Inc. VAT£5.37 Exc. VAT
597 in stock Certifire Approved
FD30
FS1504/BK
Pyroplex Fire & Smoke Seal Intumescent Strip, Brush, 15mm x 4mm x 2.1m, Black
£2.59 Inc. VAT£2.16 Exc. VAT
1328 in stock Bulk Buy
Certifire Approved
FD30
FO1004/WH - Bulk pack 125
Pyroplex Fire Only Intumescent Strip, 10mm x 4mm x 2.1m, White (Pack of 125)
£175.50 Inc. VAT£146.25 Exc. VAT
64 in stock Certifire Approved
FD30
LP1004DS/WH
Lorient DS (Side Twin Fin) Acoustic Fire & Smoke Intumescent Strip 10x4mm White
£4.92 Inc. VAT£4.10 Exc. VAT
428 in stock Certifire Approved
FD30
LP1504FO/WHITE
Lorient Fire Only Seal 15x4mm White
£3.34 Inc. VAT£2.78 Exc. VAT
1672 in stock Certifire Approved
FD60
LP2004DS/WH
Lorient DS (Side Twin Fin) Acoustic Fire & Smoke Intumescent Strip 20x4mm White
£6.46 Inc. VAT£5.38 Exc. VAT
298 in stock Our Brands
Choosing the right fire door strip
Every certified fire door relies on a perimeter sealing system to perform as tested. The door leaf itself can hold back fire for 30 or 60 minutes, but without the correct strip fitted into the edge of the door or frame, hot gases, flame and smoke would escape through the perimeter gap long before the door leaf failed. Specifying the right product — and fitting it correctly — is what turns a fire door blank into a compliant FD30, FD30s, FD60 or FD60s assembly.
Intumescent strips, smoke seals and combined seals
There are three broad categories of fire door strip, and the right choice depends on the door's classification:
- Intumescent strips expand rapidly when exposed to heat, sealing the gap between door and frame to prevent flame and hot gas spread. Used on FD30 and FD60 doors where smoke control is not required.
- Smoke seals use a brush, fin or pile to block cold smoke at ambient temperatures, before any intumescent has had a chance to activate. They can be fitted alongside a fire-only strip or as a standalone product for draught and acoustic control.
- Combined fire and smoke seals integrate both functions in a single product — an intumescent core with a brush or fin attached — and are required for doors designated FD30s or FD60s (the "s" denotes smoke).
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