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MDIII Duct & Conduit Sealing System
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Duct sealing systems MDIII have been developed to provide an effective and simple solution for Gas and Watertight sealing of cables & pipes in ducts, conduits & boreholes. This duct sealing system is extremely flexible and can be installed in ducts vertically and horizontally. All our duct sealing systems are specified and used by major Electrical, Gas, & Water Utility companies in the UK and Benelux countries. Complies with 2011 NEC Articles 225.27, 230.8, 300.5(G), 300.7 (A) on Raceway Seals, and 501.15 (B)(2) |
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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 MDIII, you will protect valuables from damage which is caused by gas and water leaks.
Filoform duct seals type MD is 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 just mixed 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, conduit or borehole. After this, the hardening process starts. The Filoform two-component expanding resin provides not only a 100% gas and watertight seal but also offers excellent mechanical strength.
The MDIII system 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.
- Gas and Watertight 1.0 bar (14.50psi)
- Can be made Fire resistant by using MD+
- Resistant to Hydrogen Sulphide / Methane and many other Gases
- Resistant to Hydrocarbons
- Complies with ATEX regulations
- WIMES Compliant, (3.02 2013 clause 6.4.3.2 c)
- Complies with 2011 NEC Articles 225.27, 230.8, 300.5(G), 300.7 (A) on Raceway Seals, and 501.15 (B)(2)
- Suitable for ducts/conduits & boreholes up to 250mm (10.0″ inches)
- Quick and easy installation
- A complete kit for one duct. No wastage
- 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 30 years of operational experience
| Properties | Unit | Value |
| Start time expansion | seconds | > 95 |
| End time expansion | minutes | 15 |
| Compressive strength | N / cm² | > 60 |
| Gas and water tightness 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 |
| Temperature resistance | °C | +120 |
| 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 |
| Gasoline | 30 days | no degradation |
| Resistance | ||
| Moulds | good | |
| Rodents | good | |
| Shelf life | months | minimal 30 |
| More information | |
|---|---|
| Home page product list | No |
Doorvoerdichting MD III (EN) from Filoform on Vimeo.