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Certifire Approved
FD60
LP2004DS/BR/LIGHT
Lorient DS (Side Twin Fin) Acoustic Fire & Smoke Intumescent Strip 20x4mm Light Brown
£6.46 Inc. VAT£5.38 Exc. VAT
332 in stock Certifire Approved
FD60
LP2004TS/WH
Lorient TS (Centre Twin Fin) Acoustic Fire & Smoke 20x4mm White
£9.62 Inc. VAT£8.02 Exc. VAT
355 in stock Certifire Approved
LAS1011
Lorient Firtree Acoustic & Smoke Seal 4mm - LAS1011 - Black
£5.99 Inc. VAT£4.99 Exc. VAT
260 in stock Certifire Approved
FD30
LP1504AS/BR/DARK
Lorient AS (Side Fin) Acoustic Fire & Smoke 15x4mm Dark Brown
£9.29 Inc. VAT£7.74 Exc. VAT
78 in stock Certifire Approved
FD30
FO1504/GY
Pyroplex Fire Only Intumescent Strip, 15mm x 4mm x 2.1m, Grey
£2.18 Inc. VAT£1.82 Exc. VAT
486 in stock Bulk Buy
Certifire Approved
FD30
LP1004FO/WHITE-100
Lorient Fire Only Seal 10x4mm White (Pack of 100)
£258.56 Inc. VAT£215.47 Exc. VAT
1 in stock Bulk Buy
Certifire Approved
FD30
LP1504DS/BLK-75
Lorient DS (Side Twin Fin) Acoustic Fire & Smoke 15x4mm Black (Pack of 75)
£379.14 Inc. VAT£315.95 Exc. VAT
7 in stock Certifire Approved
FD30
LP1004AS/BLK
Lorient AS (Side Fin) Acoustic Fire & Smoke seal 10x4mm Black
£6.14 Inc. VAT£5.12 Exc. VAT
240 in stock Bulk Buy
Certifire Approved
FD30
LP1504FO/WH-75
Lorient Fire Only Seal 15x4mm White (Pack of 75)
£237.48 Inc. VAT£197.90 Exc. VAT
34 in stock Certifire Approved
FD60
FO2004/BR
Pyroplex Fire Only Intumescent Strip, 20mm x 4mm x 2.1m, Brown
£3.22 Inc. VAT£2.68 Exc. VAT
588 in stock Certifire Approved
FD30
LP1504FO/BLK
Lorient Fire Only Seal 15x4mm Black
£3.34 Inc. VAT£2.78 Exc. VAT
883 in stock Certifire Approved
FD30
FS1004/TF/BR
Pyroplex Fire & Smoke Seal Intumescent Strip, Twin Fin, 10mm x 4mm x 2.1m, Brown
£2.06 Inc. VAT£1.72 Exc. VAT
316 in stock Bulk Buy
Certifire Approved
FD30
FS1504/TF/WH - Bulk Pack 50
Pyroplex Fire & Smoke Seal Intumescent Strip, Twin Fin, 15mm x 4mm x 2.1m, White (Pack of 50)
£121.80 Inc. VAT£101.50 Exc. VAT
83 in stock Certifire Approved
FD60
FS2004/TF/BR
Pyroplex Fire & Smoke Seal Intumescent Strip, Twin Fin, 20mm x 4mm x 2.1m, Brown
£4.03 Inc. VAT£3.36 Exc. VAT
310 in stock Certifire Approved
FD30
LP1504SS/BR/LIGHT
Lorient SS Fire & Smoke seal 15x4mm Light Brown
£3.66 Inc. VAT£3.05 Exc. VAT
390 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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