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Pond LinersSoil CoversAquacultureEnvironmentalSecondary ContainmentInstallation Guide

The material, from which this geomembrane is manufactured, is a cross-laminated (electrostatically fused), multi-axially oriented, HDPE (High-Density Polyethylene) Alloy.  Because of the multi-ply orientation, the material is extremely strong.  It stretches evenly under stress and is considered to be a self - supporting membrane.  This Cross Laminated HDPE Alloy does not require reinforcement for the enhancement of its physical properties.  This high density, cross-laminated poly is designed to be UV resistant by a state of the art stabilization system. This HDPE Alloy is UV stabilized to help protect from the deteriorating effects of direct sunlight. The HDPE Alloy maintains its strength and flexibility in cold temperatures.  Laboratory tests according to ASTM D-1709 (modified or improved test) revealed that this Cross Laminated HDPE Alloy demonstrated a cold crack resistance of minus [-] 70 º F  below zero.  Numerous applications in Alaska, Canada and other cold regions throughout the years have proven that this cross laminated HDPE Alloy can withstand adverse weather conditions.  The HDPE Alloy is chemically inert, non-leachable and is resistant to root penetration, rodents and microbials (it is not a food source). Additionally, it meets ASTM D-3083 (Soil Burial).  The HDPE Alloy is not prone to stress-cracking (ESC), thus, making it a very good moisture and Radon barrier.  The 20 mil HDPE Alloy is equivalent to a 30 mil polyethylene in terms of resistance to petroleum compounds, tensile strength, resistance to sunlight degradation (UV) and elongation.  The Texas Pollution Control Branch (A Division of the Environmental Management Group) declared that the 20 Mil Cross Laminated HDPE Alloy Containment Liners are a viable alternative to 30 mil polyethylene (dated Oct. 31, 1991).

HDPE ALLOY (S)tandard Geomembrane
HDPE ALLOY (R)einforced Geomembrane
HDPE ALLOY (G)eocomposite (single or double sided)

HDPE Alloy Data Sheets

HDPE ALLOY - 7.5 Mil Cross Laminated

HDPE ALLOY - 10.5 Mil Cross Laminated
Offered in White or Black)

HDPE ALLOY - 20 Mil Cross Laminated

HDPE ALLOY - Reinforced 20 Mil Cross Laminated

HDPE ALLOY - 48 Mil Cross Laminated

Pressure Sensitive Tape

Double Sided Tape

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HDPE Alloy Liners Cost Containment for Custom Covers & Liners

Daily landfill covers have a number of special requirements which will greatly effect cost effectiveness.  The frequent pulling of your daily landfill cover across a wide array of rough and jagged edges as you deploy and remove it necessitates that your cover material be extremely durable to resist tears and abrasions.  Otherwise you are left with a shredded mess in short order. The patented manufacturing process produces a cover with high tear resistance in all directions.  This greatly extends the effective life of your cover.

Since you are constantly deploying and removing this cover, you want a light-weight material that can be handled easily by as small a crew as possible for the greatest labor savings. 

HDPE Alloy Daily Covers

HDPE Alloy Pond Liners are guaranteed to be 100% Safe for All Fish and Potable Water Applications.  The geomembrane has FDA and USDA Approved for all grades, 4 mil to 20 mil Inclusive.  The geomembrane is safe for all underwater applications wherein fish maybe in contact with the surface of the polymer.  This material is of polyolefinic nature and as such has been used in Food Contact Surfaces as well as Medical Applications for humans.  This cross laminated HDPE Alloy will in no way dissolve in water or emit any harmful chemicals into the water that might adversely effect the fish.   This geomembrane meets FDA requirements for Indirect Food Additives and for GRAS (Generally Recognized as Safe) under FDA-HFF-335 title 21 Code of Federal Regulations, Sections 177.1500 to 177.2000, inclusive. Guaranteed safe for all fish grade applications.  The HDPE Alloy pond liners are strong, flexible, lightweight, and U.V. Stable.   This 20 Mil HDPE Alloy Geomembrane can be fabricated to your specific dimensions from 100 square feet up to 45,000 square feet per panel.  Large, small, round, square, whatever size and shape we can make it for you! The unique patented construction of HDPE Alloy pond liners give you the strength and durability of many thicker liners without the bulk and stiffness associated with other membranes.

HDPE Alloy GEOMEMBRANE Fabrication and Installation Guidelines
Factory Seams

HDPE Alloy Testing


All factory seams are subjected to inspection and testing by Quality Control personnel.  This seaming method produces a two inch wide seam that is watertight and comparable in strength to the parent material. While demanding the strictest attention to detail, statistical process controls and rigorous testing procedures assure the utmost in quality raw materials, intermediates and finished goods.

Field Seaming

Field Seaming is greatly minimized due to the ability to prefabricate customized and large liners.  When necessary, multiple large liners can be seamed in the field using hand-held extrusion welders.  These fuse the liners together utilizing a welding rod material identical in composition to the base liner.   Additionally, Fabrication Tape And Seam Tape can be used to form a durable water-tight seal.

Subgrade Prep

It is common practice to install the liner over a two inch layer of sand (or equivalent) or over a layer of geotextile.  In addition to protecting the liner, the geotextile also helps stabilize the slope subgrade.  Liners installed over a subgrade which contains any sharp rocks, roots or other protrusions are subject to puncturing.  Any rocks that are not smooth and are greater than 1/4 inch in diameter should be removed before installing the liner.

Installation Guide

HDPE Alloy Liners are specially folded at the factory to make deployment easier.  Liners are accordion folded providing easy removal and placement along the edge of the pond area with a minimum of labor.  The liner is then pulled across the pond where it is positioned and secured.  The process is repeated when multiple liner sections are required.  BASIC Installation Guidelines

Anchoring Methods

The recommended method is to dig an anchor trench, insert the perimeter of the liner material into the trench and anchor it by backfilling the trench.  This is the preferred method because it completely prevents the ingress of water and wind under the liner.  Water under the liner can erode the subgrade and undermine the liner support-leading to liner failure.  If wind gets under an open edge, it can quickly convert the liner into a sail.

Pipe Penetrations

Pipe and other penetrations through the liner can be sealed by using a pipe boot.  This is a flanged tube fabricated at the factory using the liner material.  The tube fits over the pipe and the flange is sealed to the liner with Fabrication Tape.  If required, the open end of the tube may be sealed with Fabrication Tape or gasketed and mechanically sealed.

Fabrication Tape

Fabrication Tape is used to form a durable water-tight seal around the penetrations through the liner.

HDPE Alloy GEOMEMBRANE Installation is Easy as 1, 2, 3 

HDPE Alloy Pond & Lagoon Liners


For pond/lagoon liners, installation and the effective life of the material play a significant role in determining how much you really have to pay.  These cross laminated  high-density polyethylene liners can be manufactured in sizes up to an acre, virtually eliminating the need for hiring installation crews to field seam multiple panels.  In addition, the HDPE Alloy is specifically engineered to provide superior strength and tear resistance at a fraction of the weight of other materials.  The light weight reduces the manpower and time required for installation.


HDPE Alloy Liner Being Removed From Crate

The Cross Laminated HDPE Alloy liners are specially packed into crates in a manner which facilitates their removal.  When the crate is placed on a trailer or the back of a truck, simply pry the top and back from the crate and pull the upper end of the material out to lay flat on the ground.  Place weights or personnel on this extended end of the material.  Drive the truck forward causing the remainder of the material to accordion fold from the crate until the whole liner is removed. 

Pul HDPE Alloy Liner Across Pond/Lagoon

Place your people evenly across the length of the liner. (Depending on the substrate condition, you may wish to place a 6" layer of sand or geotextile in the excavated hole before deploying the liner).   Weigh down the lower end of the material to hold in place.  Those on the leading edge then should take a firm grip and deliberately walk the liner down the side, across the bottom and up the other side of your pond / lagoon.  Weigh down the liner around the entire circumference to prohibit the wind from blowing the liner back into the hole. 

Bury Lip Of HDPE Alloy Liner In Anchor Trench

Dig an anchor trench around the entire perimeter of your pond / lagoon.  Place the edge of the liner into this trench.  Backfill the trench sealing the liner in place.  (Depending on the particular application your pond / lagoon will serve, you may wish to place a thin layer of dirt or clay on the liner in the bottom of the hole before sealing down the liner).  Now you're ready to introduce liquid into your pond / lagoon.


UV stabilization protects this HDPE Alloy liner from the deteriorating effects of direct sunlight.  The high tear and abrasion resistance adds to the durability of the product for a pond/lagoon liner that will provide you with years of faithful service.  HDPE Alloy is a uniquely constructed, cross-laminated high-density polyethylene membrane. A patented manufacturing process yields the highest weight to strength ratio available and offers exceptional tear and puncture resistance. Available in a range of weights, thickness' and special composites, The HDPE Alloy products are an ideal choice for a wide range of applications. Pond and lagoon liners, secondary containment systems, floating cover systems for emissions, odor and/or rainwater control, decontamination pads or other uses where superior quality and performance are demanded. HDPE Alloy, where value is the perfect balance of cost and benefit.

HDPE Alloy Product Life & Benefits

HDPE Alloy Potable Grade Tank Liners
Guaranteed Safe For All Potable Water Grade Applications.  The HDPE Alloy Geomembrane Is the Answer for your Potable Water Grade Liner Applications.  The unique patented construction of the HDPE Alloy tank liners gives you the strength and durability of many thicker liners without the bulk and stiffness associated with other membranes.

HDPE Alloy Secondary Containment Liners
HDPE Alloy secondary containment liners are made of high density, cross-laminated polyethylene which resists punctures and tears.  This HDPE Alloy is UV stabilized to withstand prolonged exposure to sunlight and is not prone to stress-cracking (ESC) so it can endure repeated thermal expansion and contraction.  It is Non-toxic and non-leachable so the product will not harm the environment.  This HDPE Alloy  meets ASTM standards for D-3083 Soil Burial tests and is resistant to root penetrations, rodents and microbials (not a food source).  It is flexible, lightweight and easy to install.  It has excellent barrier properties and is cold-crack tested to be flexible in subzero temperatures.

HDPE Alloy Protects Groundwater During Cleanup
OSHA, the EPA and a whole host of other government agencies have regulations on environmental cleanup.  The last thing you need to worry about is the integrity of your containment membrane during cleanup of underground storage tanks or contaminated soils.  The unique patented construction of the HDPE Alloy Geomembrane gives you the strength and durability of  many thicker liners without the bulk and stiffness associated with other membranes.  We can't end the regulations, but we can give you one less thing to worry about.

HDPE Alloy Data Sheets
HDPE ALLOY - 7.5 Mil Cross Laminated
HDPE ALLOY - 10.5 Mil Cross Laminated
HDPE ALLOY - 20 Mil Cross Laminated
HDPE ALLOY - Reinforced 20 Mil Cross Laminated

HDPE ALLOY - 48 Mil Cross Laminated

HDPE Alloy Packaging
Custom fabricated to your exact dimensional specifications in any size up to one acre.  Small liners are rolled in cardboard boxes.  Larger liners and tarps are accordion folded in crates.  Roll stock available for immediate shipment!  Delivered to your door, job-site or destination of choice. 

HDPE Alloy Liners Delivered
Delivered to your door, job-site or destination of choice.

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