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  • From: "Lawrence F. London, Jr." <lfl@intrex.net>
  • To: permaculture <permaculture@lists.ibiblio.org>
  • Subject: Re: [permaculture] Question on LLDPE pond/tank liners
  • Date: Tue, 24 Jan 2006 06:14:35 -0500

John Schinnerer wrote:

Aloha,

What does anyone here know about LLDPE (linear low density polyethylene) as a pond liner material?
I'm looking at an info sheet for RUFCO brand LLDPE membrane from Raven Industries (USA) that the local Farm Supply Co-op sells.
They have 20 mil and 40 mil thicknesses available.

Is this good stuff? Bad stuff? Why? Why not?
Pros and cons? Caveats? Gotchas?

Any info appreciated...

thanks,
John S.

Is this for a pond liner, perhaps?

<><> Here's good info:

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Nilex Geosynthetics

Geogrids - Nilex Geosynthetics

Nilex is a leading distributor and manufacturer of geosynthetic products for Construction, Infrastructure Building and Environmental applications. We provide the most comprehensive geosynthetic solutions in the industry, with the most effective products for your project including:

* Concrete Revetment Systems
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* Geomembranes
* Geotextiles
* Landscape Supplies
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* Prefabricated Drains
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* Retaining Walls
* Road Surface Treatments
* Sediment Control
* Water-inflated Dams
* Vertical Drains



* Contact
* Sitemap

Click here to receive our Newsletter

* skip to content

* Home
* About Nilex
* Applications
o Containment
+ Decorative Ponds
+ Containment Berms
+ Gas Venting
+ Hazardous Waste Containment
+ Lagoons
+ Landfill Liners & Caps
+ Loose-fit Tank Lining Systems
+ Secondary Containment
o Drainage
+ Dewatering
+ Drainage
+ Filtration
o Erosion Control
+ Channel Protection
+ Flood Protection
+ Reclamation
+ Revegetation
+ Scour Protection
+ Sediment Control
+ Shoreline Protection
+ Slope Protection
o Ground Improvement
+ Subgrade Improvement
+ Soil Cleansing
+ Soil Consolidation
+ Soils Engineering
+ Vibratory Densification
o Landscape
+ Root Control
+ Seeding
+ Weed Control
o MSE Retaining Walls & Slopes
+ Berms & Dykes
+ Bridge Abutments
+ Bridge Approaches
+ Grade Separation
+ Retaining Walls
+ Slope Reinforcement
o Roads & Pavement
+ Base Reinforcement
+ Dust Control
+ Pavement Crack Reduction
+ Road Filtration
+ Separation
+ Stabilization
+ Waterproofing
* Products
o Concrete Revetment Systems
+ A-Jacks™ Concrete Revetment System
+ Articulated Concrete Block System
+ Fabric Formed Concrete
o Erosion Control Blankets
+ Extended-Term Erosion Control Blankets
+ Permanent Erosion Protection Products
+ Installation Fasteners & Tools
+ Short Term Erosion Control Blankets
o Erosion Control Products (Spray-On)
+ Fertilizers & Soil Binders
+ Flexterra - Flexible Growth Medium
+ Jet Spray® with FiberMax™
+ Seed
+ Seed Aide®
+ Tackifiers
+ Terra-Mulch® Bonded Fiber Matrix
+ Terra-Mulch® Cellulose
+ Terra-Blend™ with UltraGro™
+ Terra-Wood™ with UltraGro™
o Fencing
+ Safety Fence
+ Silt Fence
+ Snow Fence
+ T-Posts
+ Wildlife Control Fence
o Geogrids
+ Biaxial Geogrids
+ Uniaxial Geogrids
o Geomembranes
+ Geosynthetic Clay Liners (GCL)
+ High Density Polyethylene (HDPE)
+ Linear Low Density Polyethylene
+ Polyvinyl Chloride (PVC)
+ Reinforced Polyethylene
o Geotextiles
+ Nonwoven Geotextiles
+ Woven Geotextiles
o Landscape Supplies
+ Decorative Pond Liners
+ Geo-Cel™
+ Root Barrier
+ Weed Barrier Fabric
+ Tufftrack Grassroad Pavers
o Paving Products
+ GlasGrid®
+ Petromat
+ Petrotac
+ Pro-Guard
o Prefabricated Drains
+ Culvert & Storm Sewer Pipes
+ DrainGreat Prefabricated Drain
+ Geonet Prefabricated Drain
+ Green Roof
+ Multi-Flow™ Drainage System
+ Strip Drains
+ Wall Drain
+ Weeping Tile
o Reinforced Slopes
+ Sierra® Slope Retention System
o Retaining Walls
+ ARES® Retaining Wall Systems
+ Gabions Retaining Walls
+ Mesa® Retaining Wall Systems
+ Paragon Retaining Wall Systems
+ Rockfall Netting
+ SierraScape® Retaining Wall System
o Road Surface Treatments
+ Stabilizer / Dust Control
+ Snow & Ice Melt
o Sediment Control
+ Catch Basins
+ Dewatering Bags
+ Flocculant
+ Floating Silt Curtains
+ GeoRidge®
+ Inlet Pro
+ Sand Bags
+ SedimentSTOP®
+ Silt Fence
+ Silt-Saver
+ Straw Wattles
o Water-inflated Dams
+ Aqua-Barrier™ Cofferdams
o Vertical Drains
+ Earthquake Drains
+ Wick Drains
* Services
o Construction
+ Wick Drain Installation
+ Geomembrane Installation
o Support Services
+ Design Support
+ Distribution
+ Fabrication
+ Project Management
* Specifications
* News & Events
o News
o Events
o Newsletters
* Contact Us
o Contact Form
o Company Directory

Search Nilex
Linear Low Density Polyethylene

LLDPE is a more flexible version of HDPE that can be prefabricated into large panels. This geomembrane is produced from specially formulated, virgin polyethylene with outstanding flexibility, making it suitable for applications where differential or localized subgrade settlements are expected such as leach ponds, landfill closure caps or any application where elongation or puncture resistance is critical.

LLDPE is also available with a UV resistant, white light-reflective surface layer to mitigate liner temperature extremes and facilitate visual inspection.

Contact A Nilex Service Center

To find out more information about this product,
contact your nearest Nilex Service Center.
Related to this Product

* Specifications

Text for footer left side.

Copyright © 2005 Nilex Inc. All Rights Reserved.

<><><><><>

Linear low density polyethylene
From Wikipedia, the free encyclopedia.
Jump to: navigation, search

Linear low density polyethylene (LLDPE) is a substantially linear polymer, with significant numbers of short branches, commonly made by copolymerization of ethylene with longer-chain olefins.

LLDPE has higher tensile strength and higher impact and puncture resistance than LDPE. It is very flexible and elongates under stress. It can be used to make thinner films, with better environmental stress cracking resistance. It has good resistance to chemicals and to ultraviolet radiation. It has good electrical properties. However it is not as easy to process as LDPE, has lower gloss, and narrower range for heat sealing.

It is used for plastic bags and sheets (where it allows using lower thickness than comparable LDPE), plastic wrap, toys, lids, pipes, buckets and containers, covering of cables, geomembranes, and mainly for flexible tubing.

LLDPE manufactured using metallocene catalysts is labeled mLLDPE.

See also:

* Low density polyethylene
* High density polyethylene
* Ultra high molecular weight polyethylene


<><><><><>


http://www.azom.com/details.asp?ArticleID=430
Linear Low Density Polyethylene - LLDPE
Polymer Type
Thermoplastic
Advantages
Has higher tensile strength than LDPE. Exhibits higher impact and puncture resistance than LDPE. Lower thickness (gauge) films can be blown compared to LDPE, with better environmental stress cracking resistance compared to LDPE.
Disadvantages
Lower gloss than LDPE. Narrower temperature range for heat sealing. Not as
easy to process as LDPE.
Typical Properties
Applications
Packaging, particularly film for bags and sheets. Lower thickness (gauge) may be used compared to LDPE. Cable covering, toys, lids, buckets and containers, pipe.
Source : Abstracted from Plascams
For more information on Plascams please visit RAPRA Technology Ltd.

<><><>

http://plastics.dow.com/plastics/na/prod/polyethylene/lldpe.htm
DOW Linear Low Density Polyethylene (LLDPE) Resins

The balance of physical properties exhibited by DOW Linear Low Density Polyethylene (LLDPE) Resins make them ideal resins for down-gauged lids and a variety of parts such as industrial containers, trash cans, automotive parts, closures and similar items. DOW LLDPE Resins exhibit high gloss, low odor and most are suitable for packaging applications under FDA regulations.

<><><>








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