ASTRO STRIP SB - Single Blade Seals

Certifire Approved Fire Seals & Smoke Seals.

Passed at BS476 Part 22 & 31.1.

Smoke Seals to EN1634-3.

30 or 60 minute rated types.

Available in various colours.

Seals are sold per 2.1m lengths. Also available in a Single Doorsets 2 x 2.1m + 1m or Double Doorsets 3 x 2.1m lengths.

For easier shipping requirements also available in a Single Doorset 5 x 1050mm or Double Doorset 8 x 1050mm.

All seals are supplied with self-adhesive backing tape.

Smoke Seals have 6mm Brush Pile (4mm projection). Standard Brush Colours Grey, Black and White.

Alternative seals: Black Neoprene Rubber seals in single or twin blade.



Intumescent fire and smoke seals for fire door assemblies. An intumescent graphite based fire seal contained within a PVC sleeve for fitting into a rebate to either the leaves or the frame of a door. In the event of a fire the seal expands (intumesces) to many times its original volume and seals the gap around the door to provide a safe and effective barrier against the passage of fire, smoke and hot gases.

Astroflame Intumescent Fire Seals are available with or without a cold smoke seal in the form of a nylon pile. Astroflame smoke seals provide a permanent barrier to smoke - particularly important as smoke fumes travel faster and further than the fire itself.

All Astro fire and smoke seals are supplied with a self-adhesive backing tape as standard to facilitate quick and easy fitting.

Tested for 30 minutes with 10mm and 15mm to BS 476 part 22 & 31.1.
Tested for 60 minutes with 20mm and 25mm to BS 476 part 22 & 31.1.
Smoke seals tested to EN1634-3
Tested to 100,000 open/close cycles.
Fire and smoke seals are available in a choice of colours to suit your requirements or blend with decor.

To seal the bottom of the door we suggest using our Surface Mounted Acoustic Perimeter Seals or Rebate Fit Acoustic Perimeter Seals

Astro Strip SB - Single Blade Seal

Intumescent Seals Fire and Smoke. Astro Strip SB - Single Blade Seal.
Astrostrip SB - intumescent fire seal with a black Neoprene single blade smoke seal. Available in various colours.


Product Code Type Fire Rating Profile Size Lengths
AF1004 SB Fire & Smoke  30 Minutes 10mm x 4mm 2.1m / 1.05m
AF1504 SB Fire & Smoke 30 Minutes 15mm x 4mm 2.1m / 1.05m
AF2004 SB Fire & Smoke 60 Minutes 20mm x 4mm 2.1m / 1.05m
AF2504 SB Fire & Smoke 60 Minutes 25mm x 4mm 2.1m / 1.05m


To Order & Specify

Please quote the following information in the 'additional information' field above - Quantity / Product Code / Colour / Length

Example of text required - 100no  / AF1504 SB / Brown / 2.1m

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Tags: astro, strip, sb, single, blade, fire, smoke, seal, af1004, af1504, af204, af2504, flame stopping, astro-sb-singleblade, astroflame intumescent