Geotextile Bontec Non-Woven Underlay NW18 is used for separation and filtration, with 100 years durability. This has consistent aperture sizes and excellent mechanical robustness and hydraulic properties. This underlay has been needle punched and thermally bonded and has uniform tensile strength in all directions. Tensile strength 18 kN, CBR 3.0kN. Roll size: 5.25m x 100m.
