The World's Leading Manufacturer of Polypropylene and Hypalon Geomembranes

For over two decades, Dow has specialized in developing and manufacturing high-performance, scrim-reinforced geomembranes for critical containment applications. With hundreds of millions of square feet installed worldwide, Dow floating covers, liners and caps are helping to safeguard valuable natural resources the world over.

Dow Geomembranes are manufactured in the company's state-of-the-art, ISO 9001:2000 registered calendering facility in Westfield, N.C. where computer-controlled mixing and calendering operations provide continuous quality control measuring throughout the manufacturing process. The compound and scrim are evaluated before processing, and nuclear scanning of the sheet is completed during the manufacturing process along with statistical QA/QC procedures. Post manufacture destructive and non-destructive testing is performed on the final product to insure conformance to rigid specifications.

Two Materials

Dow Geomembranes are available with two high-performance base polymers: Hypalon^® (chlorosulfonated polyethylene synthetic rubber) and Polyproplyene. Dow Polypropylene Geomembranes and Dow Hypalon Geomembranes are scrim-reinforced and available in several thicknesses including 36, 45 and 60 mil (0.9, 1.14 and 1.52 mm). Factory fabricated panels can be made up to 25,000 square feet (2,300 square meters) for delivery to the job site.

Dow Geomembranes can be seamed using:

• Hot air
• Hot wedge
• Infrared
• Extrusion (Polyproplyene field seaming only)
• Dielectric (Hypalon only)
• Chemical fusion (Hypalon only)

Applications

Dow Geomembranes are ideally suited for a wide variety of applications where a reinforced membrane is desired, including:

• Potable water liners and floating covers
• Industrial waste liners and floating covers
• Aquaculture
• Leachate collection ponds
• Water conveyance
• Mining heap leach pad liners
• Secondary containment
• Agricultural waste liners
• Golf course ponds

Click here for a complete application list

Installation

Dow Geomembranes are available around the globe through a network of fabricators who use proven installation techniques. A complete listing of fabricators can be found in the Sales Contacts section.