Norseal 20 x 4mm Brown Intumescent Fire and Smoke Door Seal Strip 2.1m

Summary

The Norseal 204FSB is a 20 x 4 mm brown intumescent fire and smoke seal strip designed for fitting into the edges of fire-rated timber door leaves and frames. It provides dual protection against both fire and smoke spread, and is suitable for use in new-build and retrofit applications. At 2.1 m long, each length is sized to suit a standard single-leaf doorset stile or head.

Features

• Combined fire and smoke protection in a single strip - no separate smoke seal required
• Intumescent graphite core expands rapidly on exposure to heat to seal the door gap
• Tested to BS 476-22 (fire) and BS 476-31.1 (smoke) for verified performance
• Suitable for single- and double-leaf fire-rated timber doorsets
• Brown finish for a discreet, natural wood-tone appearance
• Standard 2.1 m length fits directly into door-edge grooves without cutting in most applications
• Suitable for new-build and retrofitting existing fire door assemblies

Specifications

• Brand: Norseal
• SKU / Part Number: 204FSB
• Width: 20 mm
• Depth: 4 mm
• Length: 2100 mm (2.1 m)
• Colour: Brown
• Type: Fire and Smoke (Smokeseal)
• Fire Test Standard: BS 476-22 / BS EN 1634-1
• Smoke Test Standard: BS 476-31.1
• Application: Fire-rated timber door edges and frames

What's Included

• 1 x Norseal 20 x 4 mm Brown Intumescent Fire and Smoke Strip, 2.1 m length