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Polypropylene PP78™
All Polypropylenes are not equal.Developed with Montell Polyolefins, the reactor-process polypropylene resin, integrated with Cooley proprietary technology and fabric offers many benefits to engineers designing with geomembranes. Because the Cooley product does not contain 'fillers or extenders' it has excellent ultra-violet (UV) resistance for outstanding weatherability in exposed geomembrane applications. Cooley geomembranes are available with written weathering warranty up to 20 years.
Why use Cooley COOLPRO PP78?
Cooley Product Performance
The high performance of the Cooley polypropylene liners is a combination of a high strength polyester scrim, tough polypropylene polymer and a unique and proprietary manufacturing process. COOLPRO PP78 exhibits very high physical performance compared to products three times as thick. These characteristics are shown in the 'Physical Properties' data sheets for the respective thickness.
Cooley polypropylene has a high strength 9 x 9 count utilizing 1000 denier weft inserted scrim which provides enhanced physical performance that exceeds those of our competitors and other geomembranes.
COOLPRO PP78 has:
High Tensile Strength
High Tear Strength
High Puncture Resistance
Excellent Dimensional Stability
High Burst Strength
Excellent Conformance and Lay Flat Characteristics (flexibility)
Excellent Cold Crack Performance at Low Temperatures (exceeds -65°F)
High Ultraviolet Resistance (up to 20 year weathering warranty)
Excellent Seaming Characteristics (wide thermal window)
High Peel and Shear Performance (seam welding)
Excellent Chemical Resistance
Can Be Installed in Relatively Low Ambient Temperatures
Available in Large Panels to Reduce Field Seaming and Installation Time
Cooley polypropylene is available in five standard thicknesses from 20 mils (0.508 mm) to 60 mils (1.50 mm). Non-standard thicknesses can also be provided up to 120 mils (3 mm).
Panel Sizes
Cooley polypropylene provides the end-user with a liner product that can be supplied in panels up to half acre in size to expedite installation and minimize the amount of field seaming. These large panels can be supplied through our network of fabricators throughout the USA and abroad.
Field Installation
To expedite installation the Cooley polypropylene can be prefabricated and delivered to the site in large custom sized panels. This method enables the area to be lined with the minimum of material and field seaming. With the excellent seaming and related characteristics of the polypropylene, the usually expected problems with field seaming of other products are eliminated.
Typical Installations
The Cooley polypropylene geomembrane liners offer superior performance over other products for all aspects of lining lagoons, ponds or other impoundments, floating covers and similar containments. Cooley's high performance polyester scrim reinforced polypropylene provides the end-user with the optimum state-of-the-art liner material, which is also user friendly.
Even with the excellent chemical resistance, polypropylene has many other attributes such as potable water containment. Complying with the strict requirements of both the National Sanitation Foundation (NSF 61) in the United States and the WRc (BS 6290) in the United Kingdom, Cooley polypropylene is used in potable water applications. This means that the liner is ideal for aquaculture, aquatic and hydroponic farming applications.
Cooley COOLPRO PP78™ is currently in service throughout the world.
PP78 is a registered trademark of Cooley Engineered Membranes, Inc.
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