XR® Geomembranes vs. HDPE (High Density Polyethylene)
Advantages of 30 mil XR Geomembranes vs. 60 mil hdpe: Thicker is not better.
XR-5® geomembranes provide over 300% higher puncture strength vs twice as thick 60 mil HDPE and over 200% better tensile strength
Environmental Stress Cracking (ESC):
HDPE has this inherent problem identified by the EPA. XR-5 geomembranes are not subject to ESC.
Flexibility for Prefabrication and Ease of Installation:
Prefabrication of XR-5 geomembranes allows for improved liner integrity and significantly reduces the number of field seams. HDPE is too rigid to prefab. Therefore, all seams are field seams which translates into longer installation time, higher installation costs and lower membrane integrity.
HDPE suffers from extreme thermal expansion and contraction. Contraction is 22 times lower with XR-5 geomembranes, eliminating the need for design consideration of thermal effects.
Superior chemical resistance
Seaman XR® Geomembranes are the strongest, most durable geomembranes in use today. See how XR Geomembranes compare to other options when exposed to a wide range of tough contaminants.