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Certifire Approved
FD30
FS1504/TF/WH
Pyroplex Fire & Smoke Seal Intumescent Strip, Twin Fin, 15mm x 4mm x 2.1m, White
£2.92 Inc. VAT£2.43 Exc. VAT
2511 in stock Certifire Approved
FD30
FO1504/BR
Pyroplex Fire Only Intumescent Strip, 15mm x 4mm x 2.1m, Brown
£2.18 Inc. VAT£1.82 Exc. VAT
891 in stock Certifire Approved
FD30
LP1504/FIN/WH
Lorient Finesse Fire & Smoke Intumescent Strip 15x4mm White
£7.79 Inc. VAT£6.49 Exc. VAT
1234 in stock Certifire Approved
FD60
FS2004/TF/WH
Pyroplex Fire & Smoke Seal Intumescent Strip, Twin Fin, 20mm x 4mm x 2.1m, White
£4.03 Inc. VAT£3.36 Exc. VAT
914 in stock Bulk Buy
IS1206/WH-50
Lorient LAS1206 Single Batwing Seal - 10mm - White (Pack of 50)
£263.59 Inc. VAT£219.66 Exc. VAT
Certifire Approved
IS1212/BLK
Lorient LAS1212 Batwing Acoustic & Smoke Seal - 12mm x 12mm - Black
£5.70 Inc. VAT£4.75 Exc. VAT
585 in stock Bulk Buy
Certifire Approved
FD30
LP1004SS/WH-50
Lorient SS Fire & Smoke Seal 10x4mm White (Pack of 50)
£154.44 Inc. VAT£128.70 Exc. VAT
7 in stock Certifire Approved
FD30
FS1004/F/BR
Pyroplex Fire & Smoke Seal Intumescent Strip, Single Fin 10mm x 4mm x 2.1m, Brown
£1.96 Inc. VAT£1.63 Exc. VAT
2910 in stock Certifire Approved
FD30
FS1004/SF/WH
Pyroplex Fire & Smoke Seal Intumescent Strip, Side Fin, 10mm x 4mm x 2.1m, White
£2.34 Inc. VAT£1.95 Exc. VAT
276 in stock Certifire Approved
FD60
FS2004/F/BR
Pyroplex Fire & Smoke Seal Intumescent Strip, Single Fin, 20mm x 4mm x 2.1m, Brown
£4.42 Inc. VAT£3.68 Exc. VAT
346 in stock 
ES/SDS/BLK
Envirograf Surface Mounted Intumescent Strip Single Doorset - Black
£56.72 Inc. VAT£47.27 Exc. VAT
8 in stock Certifire Approved
FD30
LP1504AS/WH
Lorient AS (Side Fin) Acoustic Fire & Smoke seal 15x4mm White
£9.29 Inc. VAT£7.74 Exc. VAT
132 in stock Certifire Approved
FD30
FO1004/BR
Pyroplex Fire Only Intumescent Strip, 10mm x 4mm x 2.1m, Brown
£1.80 Inc. VAT£1.50 Exc. VAT
1120 in stock Certifire Approved
FD30
LP1504TS/BLK
Lorient TS (Centre Twin Fin) Acoustic Fire & Smoke 15x4mm Black
£7.88 Inc. VAT£6.57 Exc. VAT
459 in stock Certifire Approved
FD30
FS1004/TF/WH
Pyroplex Fire & Smoke Seal Intumescent Strip, Twin Fin, 10mm x 4mm x 2.1m, White
£2.06 Inc. VAT£1.72 Exc. VAT
1108 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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