SELH05002 HydroWMS Permatex HD 300 Geotextile

SELH05002 HydroWMS Permatex HD 300 Geotextile

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HydroWMS HD 300 Geotextile is a protection and filtration separator used in drainage applications.


Heavy duty non-woven, needle punched, polypropylene geotextile.



Construction Acceptability

Before laying check that construction allows membrane continuity to be maintained.


Laying Membrane

Geotextile shall be laid continuously around all drainage surfaces as detailed in the contract drawings.

Overlaps shall be a minimum of 300mm.

Geotextile shall be laid to be laid as soon as possible after installation of drainage units.


Charcon Skeletank HPDC Infiltration Extra Storage


Property Test Method Unit Value
 Mass per unit area  EN ISO 9864  g/sq.m    300
 Thickness under load 2kPa EN ISO 9863-1  mm  2
 CBR puncture resistance EN ISO 12236  N  4000
 Dynamic cone drop EN ISO 13433 mm  11
 Tensile strength (min) at max. load  EN ISO 10319  kN/m  25
 Tensile extension (max) at max. load EN ISO 10319  %  50
 Protection efficiency  EN ISO 14575  N  300
 Breakthrough head BS EN ISO 10319  mm  nil
 Coefficient of permeability  EN ISO 11058  m/s  55 x 10-3
Characteristic opening size EN ISO 12956 microns 70



This product specification is neither giving nor implying warranty for the use of this information for design and installation, as these are beyond our control. The data provided is typical and based upon the mean values obtained from the samples taken for any one test. If not otherwise indicated the test procedures reflect usually the mean of five samples. HydroWMS Limited reserve the right to change the specifications without prior notice. Skeletank® is a registered trade mark.