XR-3 PW® vs. Hypalon

Property 30 mil XR-3 PW ® 36 mil Hypalon ®
Tensile Strength    
ASTM D-751 Grab Method 550 lbs 220 lbs
Puncture Resistance
FTMS 101C Method 2031
350 lbs 190 lbs
Sunlight Resistance Excellent Excellent
Hydrocarbon Resistance Excellent Poor
Chlorine Resistance Excellent Good
Warranty Available Weathering & Chemical Compatibility Weathering Only
Blocking Resistance Excellent Fair
Water Absorption
(212°F, 7 days)
9.90% 85.80%
Hydrostatic Resistance
ASTM D-751
800psi 350psi
Seam Strength 100% < 80%
High Temp Dead Load - 2" Seam, 4 hrs.
(120 lbs @ 160° F)
Pass Fail
Resistant to Wicking Yes No
Sheet Edge Lock Required
To Prevent Wicking
No Yes
Thermal Expansion
(inches/100') With 150°F
Temperature Change
0.78" ~3"
Repairable with Thermal Welding Yes No
Minimum Contact Size
(smallest container per NSF 61)1
500 Gallons 20,000-30,000 gallons
1Smaller ratings mean less impurities may be transmitted to the potable water by the geomembrane