Differences Between XR Geomembranes and Polypropylene Liners

XR-5® Geomembrane CoversXR Geomembranes are built to outlast and outperform competing products. Engineered for the very toughest applications and environments, XR Geomembranes set the industry standard for geomembrane strength, durability, and performance.

Compared to polypropylene liners, XR Geomembranes offer better tensile strength, puncture resistance, blocking resistance, and more. See the chart below to learn how a 30 mil XR-5® stacks up against a 36 and 45 mil polypropylene geomembrane.

Comparison of Coated Fabric vs. Laminate 


30 mil

36 mil

45 mil

Tensile Strength
ASTM D-751 Grab Method
550 lbs 275 lbs 300 lbs
Puncture Resistance
ASTM D-751 Ball Tip
650 lbs 200 lbs 200 lbs
Hydrocarbon Resistance Excellent Poor Poor
Blocking Resistance Excellent Fair Fair
Water Absorption
(100°C, 7 days)
+9.9% +85.8% +85.8%
Hydrostatic Resistance
ASTM D-751
800 psi 375 psi 375 psi
Years of U.S. Market 27 13 13
Seam Strength
Compared to Parent Material
≥100% <80% <90%
High Temp. Dead Load
2" seam, 4 hrs. (105 lbs @160°F)
Pass  Fail Fail

Compare chemical resistance of XR Geomembranes vs polypropylene.