Integrally extruded anchors on the back of ACROLINE® Concrete Protection Liners mechanically lock the prefabricated thermoplastic sheeting into the substrate. Within its limitations, this mechanical anchoring enables the liner to resist delamination from groundwater backpressure in below-grade trenches and sumps. Grating ledges and pipe stub-outs can be integrally fabricated into liner systems. Available in four different thermoplastic polymers, Acroline Systems can handle a wide variety of chemical and thermal conditions. Shop fabricated Acroline Systems are a convenient option for lining process wastewater collection pits, sumps, and trenches when downtime is critical. Available in extruded sheets that are field welded together, Acroline Systems can be used in unlimited shape and size configurations.