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Filoform Running Water Kit duct seal instructions
Filoform Duct Seal Running Water Kit
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Home › Harsh & Industrial Products › Duct, Cable & Pipe Sealing Systems › Duct & Borehole Sealing Solutions › Filoform Duct Seal Running Water Kit

Filoform Duct Seal Running Water Kit

The Filoform Running Water Kit creates a temporary water block to divert active leaks, allowing Filoseal+ duct sealant to be installed cleanly on dry surfaces before closing the integrated tap.

  • Active Leak Ingress Management: Engineered specifically to stop and divert running water entering empty or cable-occupied ducts prior to applying Filoseal+ duct sealant.

  • Integrated Bypass Drain System: Features a tube, pipe insert, and tap assembly that temporarily channels water flow away from the sealing area so the main sealant can cure on a dry substrate.

  • Mouldable Damming Putty: Includes hand-warmed damming putty to quickly form a reliable, hand-moulded temporary water block inside the duct cavity.

  • Seamless Filoseal+ Compatibility: Designed to sit approximately 80mm inside the duct mouth, leaving ample depth in front for a standard, full-depth Filoseal+ installation.

  • Complete Stop Mechanism: Allows the drain tap to be permanently shut off after the Filoseal+ compound achieves full cure (approx. 8 days), permanently sealing the duct against water ingress.

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The Filoform Running Water Kit is an essential pre-sealing accessory designed to tackle active water ingress in cable ducts prior to applying Filoseal+ or MD+ sealing compounds. When installing permanent duct seals, running water can compromise compound adhesion and ruin the seal during installation. This kit provides a reliable method to dam, control, and divert water flow so the primary sealant can cure on a clean, dry substrate.

The kit features hand-mouldable damming putty paired with a temporary bypass pipe and emergency tap assembly. Installed approximately 80mm inside the duct cavity, the system channels active leaks away from the front sealing area. Once the primary Filoseal+ duct compound achieves a full cure (typically around 8 days), the tap is shut off to complete the permanent water block.

SKU Product name Order unit
282592 Small Running Water Block kit per piece
282593 Large Running Water Block kit per piece

Small kit

  • Non-hardening plastic waterproofing sealant.(Damming Putty)
  • 200mm length 15mm pipe
  • 15mm Emergency tap
  • Pipe insert to strengthen pipe when tap is fitted

Large kit

  • Non-hardening plastic waterproofing sealant.(Damming Putty) x 2
  • 200mm length 15mm pipe
  • 15mm Emergency tap
  • Pipe insert to strengthen pipe when tap is fitted

Technical properties of damming putty

  • Good electrical properties
  • Soft enough to be readily moulded round terminals or intricate contours or pressed into fine cavities.
  • Good adhesion to moulded plastic and other surfaces to resist the dislodging effects of vibration and to prevent moisture creepage along the interface.
  • Does not harden upon exposure to air or sunlight and does not shrink, crack or peel.
  • Readily removed and replaced for maintenance purposes.
  • Does not liberate toxic fumes even if overheated and is harmless to the hands.
  • Highly resistant to water permeation, acids and alkalis in liquid or vapour from under normal conditions.
  • No deleterious effect on metals and plastics or on natural rubber, synthetic rubber, PVC or other cables.
Properties Unit Nominal value
Dielectric Strength kV / mm 13,5
Dielectric constant (K) 6.5
Volume Resistivity at 20ºC Ohm.m 8 x 1011
Temperature range ºC -20 to +80
Working voltage (maximum) kV 1
Specific gravity at 15.5ºC 1.70
Flashpoint ºC +210

Recommendations

Shelf life of 3 years under normal conditions of wrapping and storage. The damming putty must be stored in the original packing until required for use and must be protected from dust, heat moisture, direct sunlight and solvent fumes. Users are recommended to test the putty for its suitability in their particular application.

Running Water Kit Instructions

Application

  • Remove the damming putty from the box, warm in the hands.
  • Meanwhile fit the tube, tap and pipe insert together, tap in open position.
  • Press the damming putty in the bottom of the duct to create a dam blocking the running water. This must be far enough down the duct to allow Filoseal+ to be fitted in front of it (80mm approx).
  • Press the pipe assembly into the damming putty ensuring the tap is clear of the duct front end and the back of the pipe is clear of the damming putty
  • Press more putty over the pipe onto the original damming putty. This completes the water block
  • Ensure the duct in front of the dam is clean and dry
  • Fit the Filoseal+ in the normal manner in front of the water block dam
  • After the Filoseal+ has cured, (after approx. 8 days) turn the tap off.

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