Does thickness affect the elongation or deformation limits?
Generally, the elongation property of Poly-Flex liners are independent of the material thickness. Although thinner liners deform with less pressure, the ultimate elongation at rupture is nearly the same for all gauges. • Does material thickness influence puncture resistance? Yes. Thicker liners have higher puncture resistance than the thinner ones. • How is the thickness of a liner determined for a specific application? In the case of landfills, U.S.E.P.A. mandates that all landfill liners must be 60 mil or thicker. Poly-Flex 40 mil geomembranes are preferred for landfill closures. The liner thickness is determined by the project engineer based on the project site specific conditions. • How are Poly-Flex liners held in place on side slopes? The most common method of securing the liners on side slopes is by means of an anchor trench around the perimeter. The batten strip or the PEC embed channel systems are used to attach the liner to structures. Please refer to the Poly-Flex Design Det
