2-Intumescent_fire-stop_blocks

Intumescent Fire Stop Blocks

Intumescent blocks for fire-stopping gaps around services. (PRODUCT 2)

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  • Description
  • APPLICATION INSTRUCTIONS
  • DOWNLOADS
  • ORDER REFERENCES

Product Description

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A non-inflammable, compressible and foil clad intumescent coated fibre block, 1200mm long. Designed to form a fire and smoke barrier and easily cut with a sharp knife. The blocks have self adhesive tape for joining together. Available in the standard sizes shown below. Other sizes can be made to order. For use in walls or floors, and can be easily removed for the maintenance of services. Ideal as a fire break under suspended computer floors, or between screen walling and concrete floors. They can be used with Envirograf® wraps and pipe collars for PVC pipes and electrical services.

 

ADVANTAGES

  • Great for fire-stopping voids in compartmentalised walls and floors- Easily installed around existing services and can be cut to shape to accommodate new ones
  • Can be used in conjunction with intumescent wraps or collars to provide 2 hours protection or more for services passing through walls and floors
  • Can be used between screen walling and concrete floors as a firebreak

 

FIRE TEST PERFORMANCE

Tested to BS476 Part 22 (1987), achieving 138 minutes integrity.

Tested at VNE to European Standard EN1363-1 (2000).

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APPLICATION INSTRUCTIONS

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The Intumescent Blocks can be cut with a sharp knife or hacksaw blade, fitting into the opening to form a fire seal. Can be cut and pushed around services and pipes. Where plastic pipes are 75mm or over then use Envirograf Wrap or Pipe Sleeve fixing into the blocks. Where blocks are going over cable trays, leave a small gap and use Envirograf Product 29 Cable Tray Pillows. The blocks have double-sided tape around the edges so they can be adhered to each other to form a smoke seal. Where there are any open joints use Envirograf Product 63 Intumescent Cement Filler of Product 61 CS Stopper.

Envirograf Intumescent Blocks can be used between screen walling and concrete floors as a firebreak.

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DOWNLOADS

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Please use the links below to download relevant information as PDF documents:

 

Technical Information

TD0002-09-2012

 

Application Instructions

AP002-11-2012

 

COSHH Data

HS002-06-2015

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ORDER REFERENCES

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REF SIZE LENGTH

       

PROTECTION                                          

 

IB1 50mm thick x 150mm wide 1200mm 1 hour
IB1/A 50mm thick x 100mm wide 1200mm 1 hour
IB1/B 50mm thick x   50mm wide 1200mm 1 hour
IB2 100mm thick x 150mm wide 1200mm 2 hours
IB2/A 100mm thick x 100mm wide 1200mm 2 hours
IB2/B 100mm thick x   50mm wide 1200mm 2 hours
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