FiloSeal+HD FIRE

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Duct sealing system FiloSeal+HD FIRE is our new highly certified fire, gas and water sealing system for both ducts and transit frames

  • Up to 4 hours fire resistance in transit frames (single side)
  • Up to 4 hours fire resistance in ducts
  • Tested to BS EN1366-3 2009
  • Upto 2 bar Pressure Resistance
  • 100Kg pulling Force on the cables when sealed
  • 10xd at 45º, with 1 bar pressure bending test
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FiloSeal+HD FIRE provides a strong support system using the fire resistant hexagonal blocks made of our specially formulated material called 'Formite' which builds up like a honeycomb structure. FiloSeal+HD FIRE is suitable for sealing empty or any cable configuration or pipes contained in one duct and also allows easy re-entry of the seal to add or remove cables or pipes as required

The Filoform duct sealing system FiloSeal+HD FIRE uses our fire resistant MD+ sealant which is easily applied from a skeleton gun. The high quality, one component, flexible sealant “MD+” is based on a silicon compound that cures with air (Humidity).

After application and full curing the thixotropic MD+ forms a plastic elastomer mass with special qualities effectively sealing and bonding, while providing a high level of durability.

FiloSeal+HD FIRE is very easy to apply regardless of the type of cable scenario in the cable ducts as it uses strong, but flexible hexagonal blocks to support the cable and provide a strong backing for the seal

The unique design of the hexagonal blcoks makes positioning and separation of the cables very simple while also providing a strong backing for the MD+ to be applied on.

  • Fire resistant (BS EN1366-3 2009)
  • Flexible, one component fire resistant adhesive and sealing compound in a cartridge - (310ml)
  • High levels of Gas and Water tightness
  • Excellent adhesion
  • Resistant against Water, Alkaline, Chemical agents
  • Resistant to termites (Mastotermes Darwiniensis) Northern Australian termites
  • Resistant to Rats
  • Resistant to Hydrogen Sulphide / Methane and many other Gases (NedLab)
  • Non corrosive
  • Solvent free
  • Shock absorbing
  • Non toxic, neutral and almost odourless
  • Also suitable for limiting the EX-zones during transitions (observe chemical resistance)
  • Suitable for any shaped duct / bore hole / opening
  • Quick and easy installation
  • A complete kit
  • Seals all know materials, PVC & PE sheathed cables, PILC
  • Suitable for renovations, can be installed retrospectively
  • Over 25 years of operational experience

Fire resistant duct sealant MD+

Density 1.2 gr/cm³  
Pressure resistance up to 2 bar  
Pulling Force 100kg (1000 newtons)  
Bend Test 10xd at 45º, with 1 bar pressure  
Flow < 2mm ISO 7390
Colour red-brown  
Skin over time (23C/55%RH) ± 15 minutes  
Curing 3 mm / 24 hours  
Hardness 30 shore A DIN 53505
Elongation 100% DIN 53504
Tensile strength 0.8 N/mm² DIN 53504
Operating temperature +5°C tot +40°C  
Temperature resistance -40°C tot +120°C  

Formite hexagonal blocks

  • Material - Mixture of substances (Non Hazardous) – graphite based
  • Resistant to humidity & atmospheric influences
  • Free of organic solvents
  • Zero halogen
  • Colour - Black / gray
  • Properties - Flexible

Small hexagonal block 
Dimensions single tube is O/D = 18mm I/D = 11.5mm, Length 60mm

Large hexagonal block 
Dimensions single tube is O/D = 27mm I/D = 18.5mm, Length 60mm

More Information
More information

Photos of the EN1366-3 2009 test at Exova Warringtonfire

Fire test

Fire test

Home page product list No

Download the video here.

Download the video here.

Grouped product items
Sku Product Name Duct diameter min.-max. (mm)

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80206 FiloSeal+HD FIRE 110mm Ø 110 max. Order unit per piece
80207 FiloSeal+HD FIRE 160mm Ø 160 max. Order unit per piece