Geomembranes and Waterproof Liners
Pioneering the Next-Gen Geomembrane Standard
Dow is leading the advancement of next-generation geomembrane technology with materials designed to perform—and last. In alignment with the newest GM42 standard, our offerings are engineered to deliver the highest performance . At the core are INTREPID™ Bimodal Resins—successful, high-performance polymers that offer exceptional toughness, chemical resistance, and long-term durability. Recognized as an R&D 100 finalist, Dow continues to drive innovation that shapes the future of geomembrane performance.
INTREPID™ Bimodal Resins
Engineered for exceptional durability and flexibility, INTREPID™ Bimodal Resins offer the strength and performance needed for advanced geomembrane systems. Designed to address the next-generation performance metrics, they support long-term protection in demanding environments.
Advancing Geomembrane Performance
Dow is redefining the performance standards of geomembrane materials with offerings that balance durability, flexibility, and sustainability. With a focus on long-term containment integrity and compliance with the GM42 standard, our materials help protect critical infrastructure and the environment. Powered by INTREPID™ Bimodal Resins, Dow’s geomembrane technology helps ensure consistent strength and resilience in demanding conditions—reflecting our ongoing innovation leadership recognized by R&D 100 in collaboration with key industry leaders.
Benefits
INTREPID™ Bimodal Resins offer exceptional resistance to stress cracking, heat, and chemicals—offering long-lasting performance in harsh geomembrane environments and maintaining containment integrity under extreme conditions.
Dow’s geomembrane materials offer high strength and weldability, exceptional rapid crack propagation (RCP) and impact resistance for reliable, low-maintenance protection across industrial, environmental, and infrastructure projects.
INTREPID™ Bimodal Resins feature excellent melt strength and bubble stability, supporting efficient, uniform film production. The result is consistent geomembrane quality and improved manufacturing precision.
Featured Products
INTREPID™ 2499 Geomembrane Resin
INTREPID™ 2499 bimodal resin offers exceptional chemical and thermal resistance, toughness, and long-term durability in the harshest environments.
DOW™ NG 6895 MDPE Resin
NG 6895 is a medium-density PE resin enhanced for geomembranes and formulated to help customers adhere to the GM13 standard. It offers strong ESCR, excellent tear resistance, and stable blown film performance.
Recognizing Innovation in Geomembrane Advancement
Dow’s commitment to advancing geomembrane performance has earned global recognition. Our collaborative research with Layfield was named an R&D 100 finalist, highlighting the breakthrough potential of INTREPID™ Bimodal resins in geomembrane technology. Building on this achievement, Dow also presented a recent technical paper at the GeoAsia conference, reinforcing our leadership in developing materials that meet evolving standards like GM42 and deliver long-term containment reliability.
Enhancing Geonet Drainage Performance
Geonets play a critical role in drainage and filtration systems, often used alongside geomembranes to manage fluid flow and protect containment structures. Dow supports this essential function with unimodal and bimodal polyethylene resins that offer strength, dimensional stability, and chemical resistance. While our geonet solutions are in early-stage development, we’re actively evolving bimodal formulations to enhance stress crack resistance, processing efficiency and long-term performance—helping the industry transition toward more durable, sustainable drainage materials.
Benefits
Dow’s geonet materials offer high stiffness and compressive strength, helping ensure robust support in demanding applications like heap leach pads, landfills and drainage systems.
Designed to withstand sustained loads, Dow geonet materials maintain performance under pressure, enhancing the longevity of containment systems.
Engineered with advanced materials, Dow geonet materials exhibit excellent resistance to stress cracking, supporting reliable performance over time.
Featured Products
DOW™ 6200 Geonet
Current solution offering high stiffness, compressive strength, and stress crack resistance. A good choice for drainage and containment applications. Pending BMC commercialization.
DOW™ 6601 Geonet
Offers excellent durability under load and long-term performance for drainage systems. Designed to address evolving project needs while awaiting BMC commercialization.
Frequently Asked Questions
HDPE geomembranes offer high tensile strength, chemical resistance, and durability. They resist punctures, tears, and temperature extremes, supporting reliable containment for applications such as landfills, mining, and water storage.
Dow’s INTREPID™ Biomodal Resins are engineered with enhanced molecular structure and stabilizers that prevent degradation from UV, oxidation, and harsh chemicals—maintaining long-term strength and integrity in exposed or chemical environments.
ESCR (Environmental Stress Crack Resistance) also known as stress crack resistance (SCR), measures a material’s ability to withstand cracking from long-term stress and exposure. High ESCR prevents premature failure under pressure, heat, or chemicals—vital for reliable, long-lasting geomembranes.
HDPE is a type of plastic resin, while geomembranes are lining materials made from HDPE or other polymers. HDPE is the raw material; a geomembrane is the engineered sheet used for containment and barrier applications.
Geomembranes are industrial-grade barrier sheets designed for demanding containment uses, while pond liners are a type of geomembrane made specifically for water features. Pond liners may be lighter or more flexible, whereas geomembranes can be engineered for higher strength, chemical resistance, and durability.
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