(LLDPE) Low Density Polyethylene -Textured

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.

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
 Asperity Height mils (min. avg) GM 12 10 (1) 10 (1) 10 (1) 10 (1) 10 (1) 10 (1) 10 (1) 10 (1)
 Density ASTM D-1505/D-792 0.939 g/ml 0.939 g/ml 0.939 g/ml 0.939 g/ml 0.939 g/ml 0.939 g/ml 0.939 g/ml 0.939 g/ml
 Tensile Properties ASTM D-6693 Type IV Note 3 Note 3 Note 3 Note 3 Note 3 Note 3 Note 3 Note 3
  - Break Strength 30 lb/in 45 lb/in 60 lb/in 75 lb/in 90 lb/in 120 lb/in 150 lb/in 180 lb/in
  - Break Elongation 250 % 250 % 250 % 250 % 250 % 250 % 250 % 250 %
 2% Modulus - lb/inch (max.) ASTM D-5323 1200 lb/in 1800 lb/in 2400 lb/in 3000 lb/in 3600 lb/in 4800 lb/in 6000 lb/in 7200 lb/in
 Tear Resistance (min. avg) ASTM D-1004 11 lb 16 lb 22 lb 27 lb 33 lb 44 lb 55 lb 66 lb
 Puncture Resistance (min. avg) ASTM D-4833 22 lb 33 lb 44 lb 55 lb 66 lb 88 lb 110 lb 132 lb
 Axi-Symmetric Break Resistance Strain - % (min.) ASTM D-5617 30 % 30 % 30 % 30 % 30 % 30 % 30 % 30 %
 Carbon Black Content - % ASTM D-1603 2.0 - 3.0 % (4) 2.0 - 3.0 % (4) 2.0 - 3.0 % (4) 2.0 - 3.0 % (4) 2.0 - 3.0 % (4) 2.0 - 3.0 % (4) 2.0 - 3.0 % (4) 2.0 - 3.0 % (4)
 Carbon Black Dispersion ASTM D-5596 Note 5 Note 5 Note 5 Note 5 Note 5 Note 5 Note 5 Note 5
 Oxidative Induction Time (OIT) (min. avg) Note 6 Note 6 Note 6 Note 6 Note 6 Note 6 Note 6 Note 6
  - Standard OIT ASTM D-3895 100 100 100 100 100 100 100 100
  - High Pressure OIT ASTM D-5885 400 400 400 400 400 400 400 400
 Oven aging at 85 degrees C ASTM D-5721 Note 7 Note 7 Note 7 Note 7 Note 7 Note 7 Note 7 Note 7
  - Standard OIT (min. avg) - % retained after 90 days ASTM D-3895 35 % 35 % 35 % 35 % 35 % 35 % 35 % 35 %
  - High Pressure OIT (min. avg) - % retained after 90 days ASTM D-5885 60 % 60 % 60 % 60 % 60 % 60 % 60 % 60 %
 UV Resistance Note 8 Note 8 Note 8 Note 8 Note 8 Note 8 Note 8 Note 8
  - Standard OIT (min. avg) ASTM D-3895 N.R. (9) N.R. (9) N.R. (9) N.R. (9) N.R. (9) N.R. (9) N.R. (9) N.R. (9)
  - High Pressure OIT (min. avg) - % retained after 1600 hours ASTM D-5885 35 % 35 % 35 % 35 % 35 % 35 % 35 % 35 %

(1) Of 10 readings; 8 out of 10 must be >/= 7 mils and lowest individual reading must be >/= 5 mils; also see note 6.
(2) Alternate the measurement side for double sided textured sheet.
(3) Machine direction (MD) and cross machine direction (XMD) average values should be on the basis of 5 test specimens each direction.
Yield elongation is calculated using a gage length of 1.3 inches. Break elongation is calculated using a gage length of 2.0 inches.
(4) Other methods such as D 4218 (muffle furnace) or microwave methods are acceptable if an appropriate correlation to D 1603 (tube furnace) can be established.
(5) Carbon black dispersion (only near spherical agglomerates) for 10 different views: 9 in Categories 1 or 2 and 1 in Category 3
(6) The manufacturer has the option to select either one of the OIT methods listed to evaluate the antioxidant content in the geomembrane.
(7) It is also recommended to evaluate samples at 30 and 60 days to compare with the 90 day response.
(8) The condition of the test should be 20 hr. UV cycle at 75 Degree C followed by 4 hr. condensation at 60 Degree C.
(9) 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.
(10) UV resistance is based on percent retained value regardless of the original HP-OIT value.

The above information is to the best of our knowledge accurate, but it is not intended to be considered a guarantee. Any implied warranty for a particular use or purpose is excluded. If the product does not meet the above properties, and notice is given to US Fabrics, Inc., the product will be replaced or refunded (1/2012).