Intumescent Fire & Smoke Seals

Intumescent strip available in fire only and fire and smoke. 10x4, 15x4 and 20x4 sizes. Large stocks

Product Description

Intumescent strip can be fitted to either the frame or core of the fire door and is available in either 'fire only' or 'fire and smoke' options.

This brand of intumescent seal has been developed by a British company with over 20 years experience in the passive fire protection industry and is manufactured to comply with strict Certifire guidelines. 

Product brochures and data sheets are available for download (either call our office on 01305 457703 for a copy or skip to the bottom of this page to download it now).

In the event of a fire...

These intumescent seals (a graphite based compound housed within a PVC casing) expand up to 10-15 times their size, to close the gap between the door and the door frame, thereby slowing the path of the fire through the doorway.

Fire Rating & Testing

Our range of Intumescent Strip has achieved the following fire and acoustic ratings:

  • Certifire Approved - CF846 refers
  • BS 476 Part 22
  • BS EN 1634-1 (15x4mm & 20x4mm)
  • Manufactured by a company compliant with BS EN ISO 9001: 2008 standards

Features & Benefits

Our range of intumescent Strip has the following features and benefits:

  • Rapid high-pressure multi-directional expansion
  • Mineral based: safe to handle, containing no fibrous  material or harmful chemicals
  • Unaffected by moisture, humidity, atmospheric pollution and other common industrial and household chemical substances
  • Laboratory ageing tests indicate a life expectancy in excess of 100 years
  • Supplied with a self adhesive backing for ease of application
  • Identification on each product ensure full traceability
  • Available in a range of sizes (10x4mm, 15x4mm, 20x4mm etc..) and colours: white, brown and silver (red, cream available on request)
  • Available both with ('Fire and Smoke') and without ('Fire Only') brush pile


These intumescent strips are a regular stock item but for large orders (over 3 pallets) please contact our office on 01305 457703 to confirm lead times.

Technical Support

Our warehouse and technical support team have over 35 years combined experience of the manufacture and properties of these intumescent strips.

If you have ANY questions about these products, their application or installation please contact us on 01305 457703 or email