Filoform Cable Duct Seals Filoform Cable Duct Seals provide effective sealing to ducting against gas and water - Filoform cable duct seal kit features a specially formulated expanding polyurethane which cures to a high density closed cell structure, ensuring a water and gas tight seal around cables entering service ducts. Permanent and re-enterable cable ducts seals are available. FiloSeal+ Re-enterable Cable Duct Sealing System - Filoform FiloSeal+ duct sealing systems are universal solution for sealing cables and pipes in ducts or bore holes. Filoform 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. Filoseal+ provides watertight and gastight cable duct sealing for 75-200mm diameter cable ducts. Filoform MD11 Cable Duct Sealing System - Filoform MDII cable duct sealing system type has been developed to provide an effective and simple solution gas and watertight cable duct sealing requirements. Seals internally and externally around the outside edge of the duct - suitable for underground cable ducts with a diameter of 40mm up to 200mm and cables or pipes with a diameter up to 160mm. Filoform MDIII Cable Duct Sealing System - Filoform MDIII cable duct sealing systems have been developed to provide effective and simple sealing solution for gas and watertight sealing of cables / pipes in ducts or bore holes. Filoform MDIII cable duct sealing system is extremely flexible and can be installed in ducts vertically and horizontally. Filoform MDIV Cable Duct Sealing System - Filoform MDIV cable duct sealing system type is suitable for quick and easy sealing of empty cable ducts / boreholes where cables or pipes are to be installed at a later date. Filoform MDIV cable duct seal provides an effective gas and watertight seals for cable ducts with diameters of 75mm up to 160mm. Filoform Cable Duct Seal Systems * Resistance to high levels of water and gas pressure * Fire resistant cable duct seals, up to 2 hours - tested to BS EN 1366-3 : 2009 * Suitable for range of cable duct diameters and shapes * Quick and easy to install duct seals * Resists movement, shock and vibration * Suitable for cable duct renovation and diversions - duct seals can be installed retro-fit * ATEX compliant duct seals * WIMES compliant duct seals (3.02 Clause 7.4.3.2.d&e)

1. MDIII
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.

2. 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.
Filoform UK – Unit B & B1, Lambs Farm Business Park – Basingstoke Road, Swallowfield, Reading,
www.filform.co.uk
Tel: +44 (0)191 490 1547
Fax: +44 (0)191 477 5371
Email: northernsales@thorneandderrick.co.uk
Berkshire RG7 1PQ – +44 (0)118 9886873 – info@filoform.co.uk
Website: www.cablejoints.co.uk
www.thorneanderrick.co.uk

3. Duct sealing system type MD III is designed for sealing cable and pipe penetrations
in conduits or duct openings that are tightly positioned against each other.
The MDIII systems has two circular foam flanges that creates a chamber where our
specially formulated expanding polyurethane resin can easily be injected due to the
convenient and safe to use twin pack with screw nipple and filling tube. The
polyurethane resin will expand and thus create a gas and watertight seal.
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.
Seals all known materials: PVC & PE sheeted cables, PILC cables, (HD)PE pipes,
PE drink water conduits.
Filoform UK – Unit B & B1, Lambs Farm Business Park – Basingstoke Road, Swallowfield, Reading,
www.filform.co.uk
Tel: +44 (0)191 490 1547
Fax: +44 (0)191 477 5371
Email:RG7 1PQ – +44 (0)118 9886873 – info@filoform.co.uk
Berkshire northernsales@thorneandderrick.co.uk
Website: www.cablejoints.co.uk
www.thorneanderrick.co.uk

4. Product overview
Part Number
Description
Maximum duct
diameter (mm)
Maximum cable / pipe
diameter in the duct (mm)
280291
MDIII-25 duct sealing kit
max. Ø 25
max. Ø 8
282550
MDIII-50 duct sealing kit
max. Ø 50
max. Ø 20
282575
MDIII-75 duct sealing kit
max. Ø 75
max. Ø 40
280295
MDIII-110 duct sealing kit
max. Ø 110
max. Ø 80
280296
MDIII-160 duct sealing kit
max. Ø 160
max. Ø 130
2802973
MDIII-200 duct sealing kit
max. Ø 200
max. Ø 160
2802974
MDIII-220 duct sealing kit
max. Ø 220
max. Ø 190
2802978
MDIII-250 duct sealing kit
max. Ø 250
max. Ø 220
Set contents
2 foam flanges
Self-adhesive foam strips
Expanding polyurethane filler
Screw nipple with filling tube
Set protective gloves
Sandpaper
Installation instructions
Filoform UK – Unit B & B1, Lambs Farm Business Park – Basingstoke Road, Swallowfield, Reading,
www.filform.co.uk
Tel: +44 (0)191 490 1547
Fax: +44 (0)191 477 5371
Email: northernsales@thorneandderrick.co.uk
Berkshire RG7 1PQ – +44 (0)118 9886873 – info@filoform.co.uk
Website: www.cablejoints.co.uk
www.thorneanderrick.co.uk

5. Specifications
Properties
Unit
Value
Start time expansion
seconds
> 95
End time expansion
minutes
15
Compressive strength
N / cm²
> 100
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
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
Chemical resistance
Resistance
Molds
good
Rodents
good
Shelf life
months
minimal 18
Installation video
https://vimeo.com/39628394
Filoform UK – Unit B & B1, Lambs Farm Business Park – Basingstoke Road, Swallowfield, Reading,
www.filform.co.uk
Tel: +44 (0)191 490 1547
Fax: +44 (0)191 477 5371
Email: northernsales@thorneandderrick.co.uk
Berkshire RG7 www.cablejoints.co.uk info@filoform.co.uk
1PQ – +44 (0)118 9886873 –
Website:
www.thorneanderrick.co.uk