A flexible yet resilient heavy-duty membrane with excellent chemical resistance and long-term performance, Permafilter Geombrane offers highly effective waterproofing. Easily worked and extremely resistant to tears or punctures, it is suitable for a range of SUDS applications, including: Barrier layering to prevent sub-grade softening; storage tank lining; cut-offs and liners; swales and other soft SUDS; car park decking; and rainwater harvesting.

Permafilter Geomembrane can be used in a wide variety of sub-surface and groundwater conditions beneath Infilta block paving or porous asphalt surfaces.