Intumescent Foam Expansion Joint / Linear Joint Fire Seal

Intufoam Expansion Joint Fire Seal | QI

QI Intufoam is a versatile fire resistant expansion joint fire seal providing a fire stop seal for movement joints or at the junction of compartment floors and walls. The compressible foam core accommodates different joint widths whilst allowing for structural movement.

Name: Intufoam


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Features & Benefits

  • Tested to current BS and BS EN Standards
  • Lightweight and easy to handle
  • Provides various fire ratings
  • Suitable for various gaps

Product Information


QI Intufoam is manufactured from specially treated compressible foam, impregnated with fire retardant chemicals. The foam is then bonded to a graphite based intumescent material to form a composite seal. In the event of fire this expands to maintain the fire stop seal.

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Standards & Approvals

Building Regulations impose limitations on all gap and joints QI Intufoam has been tested to current BS and BSEN Standards to various fire ratings for a range of linear gaps.



Performance Table

For available sizes & performances to suit your application, please contact our Technical Team at

Installation Information

The QI Intufoam system comprises 1m lengths of sealed foam core faced with a flexible intumescent material. Installation is simple, requiring no specialist tools. To install: simply compress the QI Intufoam by hand and slide into place.

QI Intufoam provides a reliable, easily fixed fire seal to resist the passage of fire througl structural joints and gaps including:

  1. Expansion, contraction and flexible movement joints. Intufoam’s excellent compression and recovery allows movement to take place without affecting the fire seal.
  2. The junction of separating and compartment walls with floors or roof. Intufoam is suitable for both horizontal and vertical junctions.

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QI Intufoam Expansion Joint Fire Seal - Technical Documentation