|
|
HDPE
(High Density Polyethylene)
|
LLDPE
(Linear Low Density Polyethylene)
|
PVC
(Polyvinyl Chloride)
|
|
Advantages
|
|
|
Highest seam strength
|
|
|
Wide range of chemical resistance
|
|
|
Ultraviolet resistance
|
|
|
Can be patched with our
geomembrane repair kit |
|
|
|
High seam strength
|
|
|
More flexible than HDPE
|
|
|
Ultraviolet resistance
|
|
|
Can be patched with our
geomembrane repair kit |
|
|
|
High elasticity, conforms to subgrade irregularities
|
|
|
More flexible than HDPE and MDPE
|
|
|
Can be patched using adhesive and solvent
|
|
|
Thicknesses
|
20, 30, 40, 60, 80, 100 mil
|
20, 30, 40, 60 mil
|
30, 40, 50, 60 mil
|
|
Warranty
|
Up to 20 years
|
Up to 20 years
|
Up to 20 years
|
|
Disadvantages
|
|
|
No internal reinforcement mesh
|
|
|
Expands and contracts with temperature changes
|
|
|
|
No internal reinforcement mesh
|
|
|
Expands and contracts with temperature changes
|
|
|
|
Low seam strength
|
|
|
Not resistant to ultraviolet radiation
|
|
|
Becomes very brittle at low temperatures
|
|
|
Certain species of rodents are attracted to PVC
|
|
|
Typical Uses
|
|
|
Secondary containment
|
|
|
Landfills
|
|
|
Lagoons
|
|
|
Ponds
|
|
|
Canals
|
|
|
Leach pads
|
|
|
|
Secondary containment
|
|
|
Ponds
|
|
|
Temporary covers
|
|
|
Landfill covers
|
|
|
|
Lagoons
|
|
|
Ponds
|
|
|
Landfill covers
|
|
|
|
GCL
(Geosynthetic Clay Liner)
|
Ja-Guard Liner
|
Fertoguard Liner
(Reinforced Polypropylene)
|
|
Advantages
|
|
|
Can take the place of a 2' layer of compacted clay
|
|
|
Installs quickly
|
|
|
Available in non-reinforced and reinforced
|
|
|
|
Flexible
|
|
|
Scrim reinforced
|
|
|
|
Fiber mesh reinforced for high tensile strength
|
|
|
More flexible than MDPE or HDPE
|
|
|
Can be repaired using hot air gun
|
|
|
Ultra-violet resistance
|
|
|
Thicknesses
|
--
|
36 mil
|
36, 45 mil
|
|
Warranty
|
Up to 5 years
|
Up to 20 years
|
Up to 20 years
|
|
Disadvantages
|
|
|
Must have at least 1' of cover soil to function properly
|
|
|
GCL is ruined if exposed to water before cover soil is placed
|
|
|
More expensive than PVC, HDPE, or MDPE
|
|
|
Breaks down in soils with high lime content
|
|
|
|
Higher in cost than HDPE or polypropylene |
|
|
|
Exposed reinforcement mesh on edges must be encapsulated
|
|
|
Seams are not as strong as HDPE or MDPE seams
|
|
|
More expensive than MDPE or HDPE
|
|
|
Typical Uses
|
|
|
|
|
Secondary containment
|
|
|
Small lagoons
|
|
|
Ponds
|
|
