Bentofix® NSP 4000
Bentofix® NSP 4000 is a Geosynthetic Clay Liner (GCL) of a continuous layer of a high swelling sodium bentonite powder, sandwiched between a needle-punched polypropylene (PP) geotextile as a cover layer and a slit-film PP woven geotextile as the carrier layer. The components are needle-punched uniformly together across the entire GCL creating a shear stress-transferring composite GCL. Additional 800g/m² bentonite with the same quality as the core bentonite is impregnated into the surface of 500mm of the length edges of the cover nonwoven geotextile during the manufacturing process to facilitate self-sealing length overlaps. An overlap guide-line delineating the overlap zone is imprinted with non-toxic ink 30cm from the woven edges of the GCL panel to ensure the accuracy of the seam.