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Duct sealing system type MDIV 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. All our duct sealing systems are specified and used by major Electrical, Gas, & Water Utility companies in the UK and Benelux countries. |
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Filoform duct sealing systems have been developed to provide an effective gas and watertight seal of underground cable penetrations. When installing our duct sealing system MDIV, you will protect valuables from damage which is caused by gas and water leaks.
Filoform duct seals type MD are based on a specially formulated two-component expanding polyurethane resin. The polyurethane sealant is packed in a transparent plastic bag with a screw ring. In this plastic bag, the two components are separated by a clamping profile. After removal of the clamping profile, the two components are simply mixed together 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.
- Gas- and Water tight 1,0bar
- Can be made Fire resistant by using MD+
- Resistant to Hydrogen Sulphide / Methane and many other Gases
- Complies with ATEX regulations
- WIMES Compliant, (3.02 2013 clause 6.4.3.2 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
| Properties | Unit | Value |
| 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 |
| Chemical resistance | ||
| 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 |
| Gasonline | 30 days | no degradation |
| Resistance | ||
| Molds | good | |
| Rodents | good | |
| Shelf life | months | minimal 30 |
| More information | |
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| Home page product list | No |
Doorvoerdichting MD IV (EN) from Filoform on Vimeo.