Filoform MDIV Duct Sealing System is suitable for quick and easy sealing of empty ducts / boreholes where cables or pipes are to be installed at a later date. The system provides an effective Gas and Watertight seal. Suitable for ducts with a diameter of 75mm up to 160mm.
Filoform Part Numbers: MDIV-1 (280301), MDIV-3 (280321), MDIV-4 (280331P).
Filoform Duct Sealing Systems provide an effective gas and watertight seal of underground cable penetrations and protect valuables from damage appearing due to gas and water leaks. They are specified and used by major Electrical, Gas, & Water Utility companies in the UK and Benelux countries.
Filoform duct seals type MD are based on a specially formulated two-component expanding polyurethane resin. The polyurethane sealant comes in a transparent plastic bag with a screw ring. In this plastic bag, a clamping profile separates the two components. After removal of the clamping profile, simply mix the two components for 30 seconds. The package is now ready for use and can be easily opened with the use of the screw nipple.
After pouring the resin in the duct, the resin starts expanding by forming CO². During the expansion the polyurethane filling material penetrates all areas inside the duct, thus sealing all openings regardless of the shape of the duct or borehole. After this the hardening process starts. The Filoform two component filler provides not only a 100% gas and watertight seal but also offers excellent mechanical strength.
The MDIV system (MDIV-1, MDIV-3, MDIV-4) is suitable in situations where more than one cable or pipe is in the duct. The opening of the duct does not need to be completely round and is far superior to aerosol foams.
Filoform MDIV Duct Sealing System – Key Features
- Gas- and Water tight 1,0bar
- Can become Fire resistant by using MD+
- Resistant to Hydrogen Sulphide / Methane and many other Gases
- Complies with ATEX regulations
- WIMES Compliant, (3.02 2013 clause 18.104.22.168 c)
- Suitable for ducts / bore holes
- Quick and easy installation
- A complete kit for one duct
- Seals all know materials, PVC & PE sheathed cables, PILC, (HD) PE pipes
- Excellent mechanical strength, after curing resistant to movements, shocks and vibrations
- Suitable for renovations, can be installed retrospectively
- Over 25 years of operational experience
For Additional Information on Filoform MDIV Duct Sealing System (MDIV-1, MDIV-3, MDIV-4), please refer to the Technical Data Table below or download PDF File.
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|Part Number||Product Name||Duct Diameter
Min - Max (mm)
|Max Cable Diameter
in the duct (mm)
|280301||MDIV-1 Ø 75- 95||Ø 75-95||not applicable||per piece|
|280321||MDIV-3 Ø 95- 125||Ø 95-125||not applicable||per piece|
|280331P||MDIV-4 Ø 125- 160||Ø 125-160||not applicable||per piece|
Expanding Resin Specifications
|Start time expansion||seconds||> 95|
|End time expansion||minutes||15|
|Compressive strength||N / cm²||> 60|
|Density 1,0bar||30 days||no leakage|
|Density 10m water column||30 days||no leakage|
|Volume consistency||cube 10 x 10cm||no change|
|Temperature Cycles, -20°C tot +40°C||10 consecutive cycles||no leakage|
|Vibration test 10 Hz/amplitude 3mm||240 hours||no leakage|
|Axial tensile force||diameter x 10 N||no leakage|
|Resistance to bending||cables 45° in 2 directions >250mm||no leakage|
|Expansion polyurethane foam in pipe||cm||< 40|
|0,1N Na₂SO₄: 30 days - no degradation|
|0,1N NaCl: 30 days - no degradation|
|0,1N H₂SO₄: 30 days - no degradation|
|0,1N NaOH: 30 days - no degradation|
|Diesel: 30 days - no degradation|
|Gasoline: 30 days - no degradation|
|Shelf life: months - minimal 30|
- Coil shaped unit
- Expanding polyurethane filler
- Screw nipple
- Set protective gloves
- Installation instructions
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