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HydroBond 410 GeoDrain

Two-core drainage sheet consisting of a non-woven geotextile filter layer thermally welded to a water impermeable HDPE (High Density Polyethylene) drainage membrane.

  • Key Benefits
  • Typical Applications
  • Technical Data
  • FAQ
  • Key Benefits

    Key Benefits

    • Prevents water pressure from bearing against the structure.
    • Resistant to all chemicals normally found in the ground.
    • Withstands stresses and movement acting as a slip membrane as the backfill settles.
    • Allows for backfilling with excavated earth.
    • Extremely strong material, minimising the risk of damage when backfilling even when no protection board is used.
    • Very high compressive strength.
    • Suspended soil particles (fines) are filtered out by the geotextile layer.
    • Quick and easy to install with a range of ancillary fixing and installation products.

    Typical Applications

    Typical Applications

    • As the drainage layer of an externally applied waterproofing system when used in conjunction with sheet applied or liquid applied external tanking membrane to BS 8102:2022.
    • Protection of the structure from aggressive chemicals in the ground water.
    • To prevent the build up of ground water to retaining walls.

    Technical Data

    Technical Data

    Installed Performance Result
    Thickness at 2kPa 11.3mm
    Water flow (in plane) 3.50 l/m2/s
    Water flow through Geotextile 350 l/m2/s
    Compressive strength – Temporary loading 420 kPa
    Water vapour diffusion resistance – Sd value >604m
    Water vapour diffusion resistance – µ value >1208000µ
    Water vapour diffusion resistance  >3020 MNs/g
    Tensile strength (Machine direction) 15.4 kN/m2
    Tensile strength (Cross direction) 16.8 kN/m2
    Chemical resistance – Excellent 100%
    Oxidation resistance – Excellent 100%



    What is a drainage membrane?

    Drainage membranes are utilised as supplementary layers in various waterproofing systems, functioning as an anti-capillary obstruction in buried structures or drainage systems. Using drainage membranes in walls offers the following benefits: swift and effortless installation.

    How long do water membranes last?

    On average, it is recommended to replace the reverse osmosis membrane every 3-5 years. However, if the membrane continues to produce high-quality water, it could potentially be used for more than five years.

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