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Filoform Filoseal+ Universal Duct Sealing Kit

Duct sealing system FiloSeal+ is a solution for sealing cables and pipes in ducts or bore holes.

  • Utility & NEC Compliant: Approved by major UK water authorities (including Thames, Severn Trent, and Scottish Water) and meets NEC Articles 225, 230, and 300 for raceway sealing.

  • Gas & Water Tight: Provides high-level protection against water pressure and hazardous gases, including Methane and Hydrogen Sulphide.

  • All-In-One Complete Kit: Supplied with everything required to seal an empty duct of the specified size in a single package.

  • Versatile & Retrospective: Suitable for any shaped duct, borehole, or opening, and easily installed in both new builds and retrofits.

  • Chemically Resistant & Safe: Solvent-free, non-toxic, non-corrosive, and resistant to petrol, diesel, ethanol, and LPG.

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Duct sealing system FiloSeal+ is a solution for sealing cables and pipes in ducts or bore holes.

FiloSeal+ is suitable for sealing several cables or pipes contained in one duct and also allows re-entry of the seal to add or remove cables or pipes as required.

SKU Product name Duct diameter min-max (mm) Maximum cable diameter in the duct (mm) Order unit
282580 FiloSeal+ 125mm Ø 125 max. Ø 95 max. per piece
282590 FiloSeal+ 200mm Ø 200 max. Ø 160 max. per piece
This video provides an overview of the FiloSeal+Duct Seal system, showing how it is installed and detailing its key technical features.

The Filoform duct sealing system FiloSeal+ uses our MD+ sealant which is easily applied from a standard 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+ is very easy to apply regardless of the type of cable scenario in the cable ducts as it uses a uniquely shaped foam piece which positions neatly around the cables or pipes in the duct.

The unique design of the tri-flexible foam makes positioning and separation of the cables very simple while also providing a backing for the MD+ to be applied on.

This seal is easily installed in vertical scenarios while providing the added security of ensuring no loss of components down the duct.

FiloSeal+ is suitable for sealing several cables or pipes contained in one duct and also allows re-entry of the seal to add or remove cables or pipes as required.

  • Flexible, one component, adhesive and sealing compound in a cartridge – (310ml)
  • Kits are complete with backing and mastic to fill an empty duct of the quoted kit size
  • High levels of Gas and Water tightness
  • Excellent adhesion
  • Shows Fire resistance properties
  • Resistant against Water, Alkaline, Chemical agents
  • Resistant to, Petrol, Diesel, Ethanol, ASTM oil, LPG & Many more.
  • Suitable for sealing underground cable ducts set out within the APEA ‘Blue Book’
  • 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)
  • Complies with 2011 NEC Articles 225.27, 230.8, 300.5(G), 300.7 (A) on Raceway Seals, and 501.15 (B)(2)
  • WIMES Compliant, (3.02 2013 clause 6.4.3.2 d)
  • Suitable for any shaped duct /borehole/opening
  • Quick and easy installation
  • A complete kit for one duct
  • Seals common materials (PVC PILC)
  • Suitable for renovations, can be installed retrospectively
  • Over 25 years of operational experience
  • Thames Water Approved
  • Welsh Water Approved
  • Severn Trent Water Approved
  • Southern Water Approved
  • Anglian Water Approved
  • South East Water Approved
  • Yorkshire Water Approved
  • Bournemouth Water Approved
  • Scottish Water Approved
Kits are complete with backing and mastic to fill an empty duct of the quoted kit size.
Density 1.2 gr/cm³
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

Download Filoseal+ HD Datasheet & Disclaimer

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