Intumescent Expansion Joint Seal
Fire Stopping Products

Intumescent Expansion Joint Seal

Expanding your fire protection.

Retrofit construction can often present a challenge when it comes to fire protection any works undertaken can compromise existing firestopping. Our expert Intumescent Expansion Joint Seal offers a solution to make sure that all pre-existing construction offers maximum fire insulation.  

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ROCKWOOL Intumescent Expansion Joint Seal is suitable to fill construction joints of up to 75mm thick within floors and walls to add extra fire prevention. Available in a wide range of sizes to suit any project, this compressible design is formed through taking a ROCKWOOL core and shrink wrapping a graphite-based intumescent polymer to each face. If a fire were to occur, this strip would swell to form a hard char in a fire, preventing passage of fire and smoke. This product is easy-to-use and can be compressed to the required length by hand and then inserted into the joint without the need for adhesives or intumescent sealants. Exclusively for linear joint in walls, this seal is made specially to protect blockwork cavities, curtain wall and concrete slab interfaces as well as expansion and structural joints. 

 

Accreditation:

Complies with BS476: Part 20 (1987) regulation. 

IFC Certified

  • Maximum protection – ROCKWOOL Intumescent Expansion Joint Seal offers 4 hours of fire resistance, creating a lasting protection against fire and smoke passage. 
  • Available in small quantities – by giving greater customer choice, this product can be an economical solution. 
  • Water resistance – don’t fear rain, leakages or floods, ROCKWOOL Intumescent Expansion Joint Seal is 100% resistant against water.  
  • Zero maintenance – requires no ancillaries, which makes it a cost-effective solution in the long term.
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Product Properties

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Reaction to fire Fire resistance up to 4 hours
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Product range and ancillaries

Item number External item number Country Thickness (mm) Width (mm) Length (mm) Pieces Per Pack
128041 128041 UK 15 25 1000 6
128042 128042 UK 20 25 1000 6
128044 128044 UK 25 25 1000 6
128043 128043 UK 30 25 1000 6
128072 128072 UK 15 50 1000 6
128073 128073 UK 20 50 1000 6
128074 128074 UK 25 50 1000 6
128075 128075 UK 30 50 1000 6
128076 128076 UK 35 50 1000 6
128077 128077 UK 40 50 1000 6
128078 128078 UK 45 50 1000 6
128079 128079 UK 50 50 1000 6
128080 128080 UK 55 50 1000 6
128081 128081 UK 60 50 1000 6
128082 128082 UK 65 50 1000 6
128083 128083 UK 70 50 1000 6
128084 128084 UK 75 50 1000 6

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documents

 

 

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Firestopping Standard Details Guide
Firestopping Standard Details Guide

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Intumescent Expansion Joint Sealant
Intumescent Expansion Joint Sealant

Intumescent Expansion Joint Sealant

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Intumescent Expansion Joint Seal MSDS
Intumescent Expansion Joint Seal MSDS

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ROCKWOOL Insulation MSDS
ROCKWOOL Insulation MSDS

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IFCC1056-8 Rockwool Firepro Intumescent Expansion Joint Seal Certificate Issue 1
IFCC1056-8 Rockwool Firepro Intumescent Expansion Joint Seal Certificate Issue 1