US Fabrics

Use our search, it WORKS!

Better Business Bureau  
Questions?
  • > Spec Interpretation
  • > Product Application
  • > Pricing & Availability
  • > Product Comparison

 

(LLDPE) Low Density Polyethylene - Smooth

Geomembrane Liners

Polyethylene liners typically offer superior tensile strength and stiffness and are resistant to chemicals and puncture. These geomembranes are safe for potable water containment and can be fabricated into panels of up to one acre in size. Based on GM 17 "Standard Specification for Test Methods, Test Properties and Testing Frequency for
Linear Low Density Polyethylene (LLDPE) Smooth and Textured Geomembranes”
11/14/14

For critical applications requiring geomembrane liner manufactured to minimum tolerances the following properties are suggested. For non critical applications these properties should be used as a guideline only. Feel free to call us to discuss your project. (800)518-2290.

(LLDPE) Low Density Polyethylene - Smooth
(LLDPE) Low Density Polyethylene - SmoothPolyethylene Properties
Property Test Method Test Value
Thickness ASTM D-5199 20 Mil 30 Mil 40 Mil 50 Mil 60 Mil 80 Mil 100 Mil 120 Mil
DensityASTM D-1505/D-7920.939 g/ml0.939 g/ml0.939 g/ml0.939 g/ml0.939 g/ml0.939 g/ml0.939 g/ml0.939 g/ml
Tensile PropertiesASTM D-6693 Type IVNote 1Note 1Note 1Note 1Note 1Note 1Note 1Note 1
Break StrengthASTM D-6693 Type IV76 lb/in114 lb/in152 lb/in190 lb/in228 lb/in304 lb/in380 lb/in456 lb/in
Break ElongationASTM D-6693 Type IV800 %800 %800 %800 %800 %800 %800 %800 %
2% Modulus - lb/inch (max.)ASTM D-53231200 lb/in1800 lb/in2400 lb/in3000 lb/in3600 lb/in4800 lb/in6000 lb/in7200 lb/in
Tear Resistance (min. avg)ASTM D-100411 lb16 lb22 lb27 lb33 lb44 lb55 lb66 lb
Puncture Resistance (min. avg)ASTM D-4833*28 lb42 lb56 lb70 lb84 lb112 lb140 lb168lb
Axi-Symmetric Break Resistance Strain - % (min.)ASTM D-561730 %30 %30 %30 %30 %30 %30 %30 %
Carbon Black ContentASTM D-16032.0-3.0 % (2)2.0-3.0 % (2)2.0-3.0 % (2)2.0-3.0 % (2)2.0-3.0 % (2)2.0-3.0 % (2)2.0-3.0 % (2)2.0-3.0 % (2)
Carbon Black DispersionASTM D-5596Note 3Note 3Note 3Note 3Note 3Note 3Note 3Note 3
Oxidative Induction Time (OIT) (min. avg)Note 4Note 4Note 4Note 4Note 4Note 4Note 4Note 4
Standard OITASTM D-3895100100100100100100100100
High Pressure OITASTM D-5885400400400400400400400400
Oven aging at 85 degrees CASTM D-5721Note 5Note 5Note 5Note 5Note 5Note 5Note 5Note 5
Standard OIT (min. avg) - % retained after 90 daysASTM D-389535 %35 %35 %35 %35 %35 %35 %35 %
High Pressure OIT (min. avg) - % retained after 90 daysASTM D-588560 %60 %60 %60 %60 %60 %60 %60 %
UV ResistanceNote 6Note 6Note 6Note 6Note 6Note 6Note 6Note 6
Standard OIT (min. avg)ASTM D-3895N.R. (7)N.R. (7)N.R. (7)N.R. (7)N.R. (7)N.R. (7)N.R. (7)N.R. (7)
High Pressure OIT (min. avg) - % retained after 1600 hoursASTM D-588535 % (8)35 % (8)35 % (8)35 % (8)35 % (8)35 % (8)35 % (8)35 % (8)
Geomembrane Landfill
 
 
 

(1) Machine direction (MD) and cross machine direction (XMD) average values should be on the basis of 5 test specimens each direction. Break elongation is calculated using a gage length of 2.0 inches at 2.0 in/min.
(2) Other methods such as D 1603 (tube furnace) or D 6370 (TGA) are acceptable if an appropriate correlation to D 4218 (muffle furnace) can be established.
(3) Carbon black dispersion (only near spherical agglomerates) for 10 different views: 9 in Categories 1 or 2 and 1 in Category 3.
(4) The manufacturer has the option to select either one of the OIT methods listed to evaluate the antioxidant content in the geomembrane.
(5) It is also recommended to evaluate samples at 30 and 60 days to compare with the 90 day response.
(6) The condition of the test should be 20 hr. UV cycle at 75 Degree C followed by 4 hr. condensation at 60 Degree C.
(7) Not recommended since the high temperature of the Std-OIT test produces an unrealistic result for some of the antioxidants in the UV exposed samples.
(8) UV resistance is based on percent retained value regardless of the original HP-OIT value.

This information is provided for reference only and is not intended as a warranty or guarantee. US Fabrics assumes no liability in connection with the use of this information (1/2019).