Intumescent Pillows
Fire Stopping Products

Intumescent Pillows

The Building Blocks of Fire Protection

During construction projects, it may be necessary to create a temporary firestop that can even protect cables and metal pipework. The ROCKWOOL Intumescent Pillow is the perfect product for these provisional situations and are available in a range of sizes to suit most applications. 


Offering essential flexibility and safety during construction projects, ROCKWOOL Intumescent Pillows can be removed and replaced over and over again while services are changed. Not only are they easily erected and dismantled, they are perfectly adaptable and can be used to protect metal pipework, internal and external electrical trunking, and cable trays. The installer should always follow the manufacturer's instructions. This product is available in a range of sizes to suit the majority of applications. If fire occurs, ROCKWOOL Intumescent Pillows will expand to several times its original size to form a tight and safe seal around any service penetrations. 



Comply with BS476: Part 20 (1987) regulations. 

IFC Certified

  • Maximum protection – ROCKWOOL Intumescent Pillows offer 4 hours of fire resistance, creating a lasting protection against fire and smoke passage. 
  • Zero maintenance – the pillows require no ancillaries, which makes it a cost-effective solution. 
  • Upholds a dry system – ROCKWOOL Intumescent Pillows work effectively in conjunction with construction that does not possess a sprinkler system.
  • Highly adaptable – easy to remove and reinstate whilst changing services, making them the perfect solution for temporary fire prevention.

Product Properties

Reaction to fire Fire Resistance up to 4 hours

Product range and ancillaries

Item number External item number Country Thickness (mm) Width (mm) Length (mm)
128090 128090 UK 35 50 300
128038 128038 UK 35 100 300
128039 128039 UK 35 150 300
128040 128040 UK 35 200 300

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