HPS8 Heavy Duty Non-Woven Geotextile Membrane

HPS8 is a very high performance needle-punched non woven geotextile membrane manufactured from 100% virgin polypropylene high tenacity fibres, incorporating 1% active carbon black for long term UV stability. It is engineered for situations where even heavy duty geotextiles may be at risk of puncture, abrasion or long term degradation.

This membrane is optimised for strength and protection rather than mass alone. Its high tensile strength, extreme puncture resistance and high elongation allow it to absorb concentrated loads without tearing, making it suitable for direct placement beneath rock armour and other aggressive fills.

In service, HPS8 provides reliable soil filtration and separation while maintaining controlled water flow. The carefully controlled pore size prevents soil migration under high hydraulic pressure, while its in-plane drainage capacity helps relieve pore water pressure beneath heavy armour layers.

HPS8 is commonly specified in coastal and river defence schemes, landfill cell construction and capping systems, and major civil engineering projects where long term stability and protection of underlying systems is critical. It is also used in erosion control works where granular filter layers would be impractical or uneconomic.

This membrane is not intended for domestic or commercial landscaping. It is a specialist geotextile for engineered environments operating under extreme mechanical, hydraulic and environmental stress.

Installation should follow project specifications. Due to the nature of its applications, overlap, anchoring and placement details should be determined by the design engineer. The membrane should be protected from prolonged UV exposure prior to burial.

• Ultra heavy duty non woven geotextile for extreme conditions
• Designed for direct placement beneath rock armour
• Very high puncture and abrasion resistance
• High tensile strength combined with high elongation
• UV stabilised with active carbon black
• Supplied in wide rolls to reduce joints and installation time

Manufactured from 100% virgin polypropylene high tenacity fibres with 1% active carbon black. Needle-punched construction provides high extensibility, toughness and resistance to mechanical damage.

Product grade: HPS8
Fabric type: Non woven, needle punched
Polymer: 100% virgin polypropylene
Colour: Black
Mass per unit area: 400 gsm
Thickness at 2kPa: 5.8 mm
Tensile strength MD / CMD: 45 / 45 kN per metre
Tensile elongation MD / CMD: 80 / 80 percent
Static puncture resistance (CBR): 8.0 kN
Push through displacement: 65 mm
Dynamic cone drop: 2 mm
Protection efficiency: 30 kN per m²
Apparent opening size O90: 70 microns
Water flow normal to plane: 45 litres per m² per second
Coefficient of permeability: 5.2 x 10⁻³ m/s
Roll width: 6.0 m
Roll length: 125 m
Roll coverage: 750 m²