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Enhancing our environment by preserving water resources for future generations

Enviro Liner® 4000 series of geomembranes

The Enviro Liner® 4000 series is a specialized polyethylene lining material that combines flexibility, UV stability, and chemical resistance. The Enviro Liner® 4000 series was originally designed as a flexible cap material for landfills. It's good flexibility allows it to accommodate differential settlement in landfill cap applications. This flexibility also allows it to be prefabricated (welded, folded and rolled) so that many jobs can be lined using a one-piece liner.

The Enviro Liner® 4000 series is manufactured by Layfield. Each step in the production of your liner panel, from the geomembrane production, to fabrication into a custom panel, is governed and directed by EPI's quality control system. The resulting process is professionally designed to ensure your geomembrane meets specified properties, and performs to the highest possible standards in the field.

The Enviro Liner® 4000 series is ideally suited to small, exposed ponds, or for liquid or effluent containment. The Enviro Liner® 4000 series is excellent for use in backfilled water ponds, run-off collection ponds, channels, and other water and waste water containment applications. The Enviro Liner® 4000 series is UV stabilized with the addition of carbon black and is suitable for exposed use in a number of applications.

Please note that the the EnviroLiner® 4000 series is not available in Canada.

 

 
6 Jan 2005 Enviro Liner® 4000 Minimum Properties
Style ASTM Enviro Liner® 4020 Enviro Liner® 4030 Enviro Liner® 4040
Thickness
(Minimum Average)
D5199 20 mil
0.5 mm
30 mil
0.75 mm
40 mil
1.0 mm
Thickness
(Lowest Individual)
D5199 -10% -10% -10%
Density (Max) D792 0.939 0.939 0.939
Tensile Strength at Break D638
Type IV
76 ppi
13.3 N/mm
114 ppi
20.0 N/mm
152 ppi
26.6 N/mm
Elongation D638 800% 800% 800%
Tear Resistance D1004 11 lbs
49 N
16 lbs
71 N
22 lbs
98 N
Puncture Resistance D4833 32 lbs
142 N
48 lbs
213 N
61 lbs
271 N
Carbon Black Content D1603 2.0-3.0% 2.0-3.0% 2.0-3.0%
Low Temperature Impact Resistance D746 -69°F
-56°C
-69°F
-56°C
-69°F
-56°C
 
5 Jan 2005 Enviro Liner® 4000 Minimum Shop Seam Strengths
Style ASTM Enviro Liner® 4020 Enviro Liner® 4030 Enviro Liner® 4040
Heat Bonded Seam Strength D6392
25.4 mm
(1") Strip
35 ppi
6.1 N/mm
48 ppi
8.4 N/mm
68 ppi
11.9 N/mm
Heat Bonded Peel Adhesion Strength D6392
25.4 mm
(1") Strip
FTB
28 ppi
4.9 N/mm
FTB
43 ppi
7.4 N/mm
FTB
58 ppi
10.2 N/mm
 
6 Jan 2005 Enviro Liner® 4000 Minimum Field Seam Strengths
Style ASTM Enviro Liner® 4020 Enviro Liner® 4030 Enviro Liner® 4040
Heat Bonded Seam Strength D6392
25.4 mm
(1") Strip
28 ppi
4.9 N/mm
43 ppi
7.5 N/mm
58 ppi
10.2 N/mm
Heat Bonded Peel Adhesion Strength D6392
25.4 mm
(1") Strip
FTB
24 ppi
4.2 N/mm
FTB
38 ppi
6.7 N/mm
FTB
51 ppi
8.9 N/mm
 
 
Enviro Liner® 4000 Fabrication Sizes
Material
Style
2500 lb Panel
size 1200 kg
4000 lb Panel
size 1800 kg
Enviro Liner® 4020
20 mil (0.50 mm)
25,000 ft2
2,300 m2
40,000 ft2
3,700 m2
Enviro Liner® 4030
30 mil (0.75 mm)
17,000 ft2
1,600 m2
27,000 ft2
2,500 m2
Enviro Liner® 4040
40 mil (1.0 mm)
12,500 ft2
1,200 m2
20,000 ft2
1,900 m2

Each and every liner panel we produce is a custom panel. The way we set up our shop is unique in that our shop welders produce prefabricated panels to best match your containment area. We size each panel to fit, without waste, in a logical sequence in your containment area. In containments with irregular shapes we size our panels to best accommodate the irregular size.

There are no theoretical limits to the size of the liner panels that we can prefabricate but there are some practical limits, notably panel weight. Panel weight is important because of the limits of handling equipment that will be available in the field. EnviroLiner is normally limited to a maximum panel weight of 2,500 lbs (1,200 kg); however, if a skilled installation crew is available then a panel of up to 4,000 lbs (1,800 kg) is possible.

Panels are accordion folded in one direction and then rolled in the other direction. Unfolding instructions and dimensions are marked on the individual liner panel. Each panel is wrapped in an opaque, weather resistant covering suitable for shipment and storage.

All shop fabricated seams are 100% visually inspected by the welding operator. Every panel is tested for Film Tear Bond and destructively tested in peel and shear. Quality control reports are available with each panel produced. 

 

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