Filoform MDII Duct Sealing System

Product overview

Filoform MDII Duct Sealing System has been developed to provide an effective and simple solution for all your Gas and Watertight duct sealing requirements. Seals internally & externally around the outside edge of the duct. Suitable for ducts with a diameter of 40mm up to 200mm and cables or pipes with a diameter up to 160mm.

Filoform Part Numbers: MDII-50 (280271P), MDII-110 (280261), MDII-125 (280251), MDII-160 (280241), MDII-200 (280246), MDII-250 (280247).

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.

Application Process

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, 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.

The MDII system (MDII-50, MDII-110, MDII-125, MDII-160, MDII-200, MDII-250) 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.

Filoform MDII Duct Sealing System – Key Features

Gas- and watertight 1,0 bar

Suitable for use in any shaped or sized duct up to 200mm

Easy and quick installation

One complete kit for sealing of one duct

Seals all known materials: PVC & PE sheeted cables, PILC cables, (HD)PE pipes, PE drink water conduits

High mechanical strength, resists ground movement, shocks and vibrations

Also suitable for renovation works

No architectural measures necessary

Used by various utility companies as well as contractors

Over 25 years of operational experience

For Additional Information on Filoform MDII Duct Sealing System (MDII-50, MDII-110, MDII-125, MDII-160, MDII-200, MDII-250), please refer to the Technical Data Table below or download PDF File.

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