Stevens Hypalon® Geomembranes
Stevens Hypalon® is a chlorosulfonated polyethylene (CSPE)-based synthetic rubber developed by DuPont in the early 1950's. There are various Hypalon® elastomer types which are utilized in coatings, industrial cable, inflatable recreational crafts, single-ply roofing and geomembranes. Hypalon-45, the grade used in Stevens Hypalon® Geomembranes, was introduced in the early 1960's and has been widely used in the geosynthetic industry as liners, caps and floating covers.

Stevens Hypalon® chlorosulfonated polyethylene is manufactured by a proprietary process in which two layers of CSPE compound are calendered to fully encapsulate a polyester reinforcing scrim.  Hypalon® Geomembranes exhibit thermoplastic qualities during processing and field installation, which permits seaming by chemical or thermal fusion methods.  As the membrane is exposed to UV, weather and the elements, it slowly cures into a vulcanized membrane, exhibiting a higher tensile strength.

ISO-9000

In addition, all Stevens Hypalon Geomembranes are manufactured in an ISO-9001-2000 registered facility.

 

Features & Benefits

  • Excellent UV resistance for outstanding weatherability in exposed applications. Stevens Geomembranes are backed by a long-term warranty.

  • No plasticizers to leach out and cause embrittlement or cracking.

  • Low coefficient of thermal expansion and contraction provides excellent dimensional stability and lay-flat characteristics.

  • No environmental stress cracking (ASTM D1693).

  • Highly flexible for easy conformance to earth contours.

  • Scrim reinforcement provides enhanced tear and puncture resistance.

  • Excellent chemical resistance to most industrial effluents.

  • Available in 36-, 45- and 60-mil (0.9 mm, 1.14 mm, and 1.5 mm) thickness.

  • Large panel factory fabrication creates blankets up to 20,000 square feet (1,800 m2) that are shipped to job sites and field seamed using reliable thermal welding or chemical-fusion methods.

Drinking Water 

 

Stevens potable water Hypalon Geomembranes meet the requirements for contact with drinking water, including ANSI/NSF-61. Click HERE for NSF Standard 61 information.

 

Product Specifications

 

Grades:

 

Hypalon® chlorosulfonated polyethylene is available in Industrial grades only.

 

Color:
Standard color is black. 

 

Dimensions:

  • 36 mil (0.9mm) is provided in rolls 76.5" wide x 900' long (1.94m x 274m).

  • 45 mil (1.14mm) is provided in rolls 76.5" wide x 750' long (1.94m x 229m).

  • 60 mil (1.50mm) is provided in rolls 76.5" wide x 450' long (1.94m x 137m).

Weight:

  • 36 mil weighs approx. 0.24 lbs./sf (1.17kg/m2) or 1,300 lbs (590 kg) per roll.

  • 45 mil weighs approximately .29 lbs./sf (1.42kg/m2) or 1,300 lbs (590 kg) per roll.

  • 60 mil weighs approximately .44 lbs./sf (2.15kg/m2) or 1,260 lbs (572 kg) per roll.

Additional Information

 

Stevens Hypalon® Geomembrane End-Use Applications Chart

Stevens Hypalon® Geomembrane Physical Property Chart

 

Stevens Hypalon® Geomembrane Chemical Resistance Chart

 

Stevens Hypalon® Geomembrane Brochure

 

If you have any questions about the line of Stevens Hypalon® chlorosulfonated polyethylene geomembranes, click HERE to send email.