TNW3000 White Non-Woven Geotextile Membrane 300gsm

This product is a white, non woven, permeable geotextile membrane manufactured from UV stabilised polypropylene staple fibres using a needle punched process. At 300gsm, TNW3000 is the heaviest grade in the TNW range and is designed for applications where high puncture resistance, durability and long term performance are required.

In the ground, the membrane allows water to pass through the fabric while preventing the migration of fine soils into surrounding aggregates. Its primary role is separation and filtration, but at this weight it also provides effective protection to underlying components such as geomembranes, soakaway crates and attenuation tanks.

TNW3000 is commonly specified as a protection fleece in SuDS installations, including soakaways and attenuation systems. In soakaway applications it is often used on its own, while in attenuation tanks it is typically installed as a protective layer around impermeable geomembranes to reduce the risk of puncture during backfilling. It is also suitable for use beneath access roads, car parks, industrial hardstanding and other heavily trafficked areas.

This grade performs well on weak, clay or variable sub grades and where sharp aggregates or high installation stresses are expected. The combination of high tensile strength and elongation allows the membrane to flex under load while resisting tearing and puncture.

Lay the membrane on a prepared sub grade free from sharp protrusions. Overlap joints by a minimum of 300mm, increasing to 500mm on poor ground. Cover promptly with aggregate to avoid damage during construction.

• Very heavy duty non woven geotextile for separation and filtration
• High puncture resistance for protection of soakaways and geomembranes
• Suitable for SuDS, attenuation systems and poor ground conditions
• Performs well under high loads and sharp aggregates
• Allows water flow while retaining fine soils
• Available in multiple roll sizes for site flexibility

Manufactured from UV stabilised polypropylene staple fibres using a needle punched construction. This produces a thick, permeable membrane with high mechanical strength and excellent resistance to installation damage.

Product reference: TNW3000
Fabric type: Non woven, needle punched
Polymer: Polypropylene
Colour: White
Mass per unit area: 300gsm
Thickness at 2kPa: 2.0mm
Tensile strength MD / CD: 25 / 25 kN per metre
Tensile elongation MD / CD: 65 / 65 percent
CBR puncture resistance: 4300 N
Characteristic opening size O90: 70 microns
Water flow rate: 65 litres per m² per second
Available sizes: 2m x 50m, 2m x 100m and 4.5m x 100m