HDPE and LLDPE geomembranes are durable, flexible synthetic liners designed for long-term environmental containment. These materials are widely used in applications such as evaporation ponds, leachate lagoons, stormwater basins, process water ponds, manure lagoons, irrigation reservoirs, and tailings containment. HDPE offers high tensile strength, chemical resistance, and UV stability, making it ideal for large, exposed installations. LLDPE provides added flexibility and elongation, which is beneficial for sites with irregular subgrades or complex layouts. Both materials are also commonly used in landfill cap systems to reduce infiltration and control gas migration, ensuring compliance with environmental regulations.

Geosynthetic Clay Liners (GCLs) are factory-fabricated hydraulic barriers made by sandwiching a thin layer of bentonite clay between two geotextiles or bonded to a geomembrane. When hydrated, the bentonite swells to create a low-permeability seal, making GCLs an effective alternative or complement to compacted clay liners. GCLs are commonly used in landfill liners and caps, mining leach pads, wastewater lagoons, and secondary containment systems.

Geonets and geocomposites are engineered drainage materials used to manage subsurface liquid and gas movement in containment systems. Geonets are typically made from high-density polyethylene (HDPE) and feature a biaxial or triaxial grid structure that provides high transmissivity, making them ideal for leachate collection, gas venting, and cap drainage in landfills and mining facilities. Geocomposites combine a geonet core with nonwoven geotextile filter layers on one or both sides, allowing for filtration and flow while protecting adjacent materials like geomembranes.

Reinforced geomembranes such as RPP (reinforced polypropylene) and RPE (reinforced polyethylene) are high-performance liners that combine polymer flexibility with a scrim-reinforced core, providing excellent dimensional stability, puncture resistance, and ease of deployment. These materials are widely used in containment applications like stormwater basins, irrigation ponds, agricultural lagoons, temporary containment areas, and secondary liners. Both RPP and RPE offer strong chemical resistance, UV stability, and long-term weldable performance in exposed or buried conditions.

Not to be confused with coated woven polyethylene — which is typically a tarp-like product made from a woven HDPE fabric coated with LDPE — RPP and RPE are true geomembranes designed for thermal welding, structural integrity, and long-term containment. They are preferred for projects requiring high-quality seam integrity, compliance with containment specifications, and resistance to environmental degradation.

Geotextiles are permeable fabrics used in a wide range of civil and environmental construction applications for separation, filtration, drainage, reinforcement, and protection. Available in both woven (high-strength, low-elongation) and nonwoven (needle-punched, felt-like) forms, geotextiles are commonly installed beneath geomembranes to cushion against subgrade irregularities or above liners to prevent damage from cover materials. They’re also used in roadway stabilization, embankment reinforcement, landfill leachate collection systems, and erosion control applications.

Fuel-resistant geomembranes are specially formulated liners designed to contain petroleum products, hydrocarbons, and other chemical contaminants in demanding industrial and environmental settings. These liners are typically made from materials such as XR-5, PVC, or specialized reinforced polyethylene blends with enhanced chemical resistance and low permeability. They are used in secondary containment for fuel storage tanks, refueling stations, chemical processing areas, frac ponds, and vehicle maintenance facilities—anywhere spills or leaks pose a risk to soil and groundwater.