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HydroBond 410 GeoDrain

  1. Effective Drainage Solution: Two-core drainage sheet with non-woven geotextile filter layer and water impermeable HDPE membrane provides efficient drainage for externally applied waterproofing systems, preventing water pressure buildup against the structure.
  2. Chemical Resistance and Durability: Resistant to all chemicals found in groundwater, HydroBond 410 GeoDrain withstands stresses and movement, serving as a slip membrane during backfilling and ensuring long-term protection of the structure.
  3. Easy Installation and High Strength: Quick and easy to install with a range of ancillary fixing and installation products, the material offers very high compressive strength and filters out suspended soil particles, minimising the risk of damage during backfilling even without protection board usage.

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%

    FAQ

    FAQ

    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.

    Speak to our friendly, expert team

    Our staff are able to provide guidance for projects of all sizes, whether you require some general advice about damp or waterproofing, or support with technical drawings and specifications.


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