Geomembrane

Geotest –
Adelaide’s Most Experienced Geomembrane Supplier

Contact Us

With over 40 years in the Geomembranes business, Geotest is the only geomembrane supplier that’s pioneered R&D, testing and new product innovations in the geosynthetics industry. You can trust our team for professional geomembrane solutions, including design, engineering, supply, installation, welding or repairs to any type of geomembrane.

From geomembranes and geotextiles to clay liners, geogrids, geofoam, geocells, composites and floating covers, you can trust Geotest for complete end-to-end solutions for civil projects.

Professional Geomembrane Solutions

Geotest has undertaken over 200 projects worldwide involving geomembrane material selection and specification.

Our engineers are experts in all types of geomembrane lining systems and offer professional help and advice on material selection. Our team can analyse your site and recommend the optimal composition for your linings.

As leaders in the geomembrane field, we offer geomembrane solutions for every application.

Geomembrane Materials

At Geotest, we constantly monitor new and emerging materials in geosynthetics and stay abreast of the latest technological developments.

Our inventory comprises a comprehensive assortment of premium geosynthetic liners sourced from top-tier manufacturers worldwide to ensure you’ll always get top-quality, high-performance products.

HDPE Geomembrane

High-Density Polyethylene Liner

HDPE lining membranes are the industry’s most commonly used geomembrane liner due to their strength, chemical resistance and strong performance record.

HDPE Geomembrane Features

  • Durable
  • UV Stable
  • Large Product Range
  • Excellent Chemical Resistance
  • Wide Range of Sizes

HDPE Geomembrane uses & applications

Read More About HDPE Geomembrane Liners

HDPE (High-density polyethylene) geomembrane linings are plastic sheets made from high-density polyethylene, which is a thermoplastic polymer known for its strength, durability, and resistance to chemicals and UV radiation. These geomembranes are used as barriers to prevent liquids and gases from seeping into or out of the ground.

HDPE geomembranes are often used in civil engineering and environmental applications, such as landfills, wastewater treatment plants, mining operations, and containment ponds.

They are preferred over other types of liners because of their excellent chemical resistance, long-term durability, and cost-effectiveness.

HDPE geomembranes are available in various thicknesses and sizes, and they can be heat-welded to create a continuous, impermeable barrier.

LLDPE Geomembrane

Linear Low-Density Polyethylene Liner

LLDPE geomembranes have good flexibility and elongation properties, making them easy to install on uneven or irregular surfaces and are a popular choice for water containment.

 

LLDPE Geomembrane Features

  • Durable
  • Flexible
  • UV Stable
  • Large Product Range
  • Excellent Chemical Resistance
  • Wide Range of Sizes

LLDPE Geomembrane uses & applications

Read More About LLDPE Geomembrane Liners

LLDPE (Linear low-density polyethylene) geomembrane linings are plastic sheets made from linear low-density polyethylene. LLDPE is a flexible and lightweight material with excellent chemical and UV resistance, making it suitable for various environmental and civil engineering applications.

LLDPE geomembranes are often used in landfill, wastewater treatment, mining, and agricultural applications. They are highly resistant to punctures, tears, and stresses caused by the settlement of the substrate or temperature changes.

LLDPE geomembranes can be manufactured in various thicknesses, widths, and lengths. They can be seamed using different methods, such as extrusion welding, hot wedge welding, and adhesive bonding, to create a continuous, impermeable barrier.

CSPE Geomembrane

Chlorosulfonated Polyethylene Liner

CSPE is commonly used where UV stability, chemical resistance and high strength is required.

CSPE Geomembrane Features

  • Durable
  • Flexible
  • Long UV Rating
  • Excellent Chemical Resistance
  • Good range of sizes

CSPE Geomembrane uses & applications

Read More About CSPE Geomembrane Linings

CSPE (Chlorosulfonated Polyethylene) geomembrane linings are a type of synthetic polymer liner used in various water containment applications. They are known for their high resistance to ultraviolet radiation, ozone, and chemicals, making them ideal for harsh environmental conditions.

CSPE geomembrane linings offer excellent physical and mechanical properties, including high tensile strength, low elongation, and good dimensional stability.

They are also highly flexible, allowing them to conform to the shape of the containment area. CSPE geomembrane linings are commonly used in applications such as reservoirs, ponds, canals, and landfill liners, providing reliable water containment and environmental protection.

PVC Geomembrane

Poly Vinyl Chloride Liner

PVC liners are cost-effective, lightweight and easy to install, making them a popular choice for water containment and environment protection projects.

PVC Geomembrane Features

  • Flexible
  • Quick to install
  • Cost–effective
  • Available in an extensive range of sizes

PVC Geomembrane uses & applications

  • Pond lining
  • Irrigation
  • Landfill lining
  • Wastewater treatment plants
Read More About PVC Geomembrane Linings
PVC (Polyvinyl Chloride) geomembrane linings are a type of synthetic polymer liner commonly used in various water containment applications. They are known for their excellent chemical resistance, flexibility, and durability, making them ideal for use in harsh environmental conditions.

PVC geomembrane linings offer good physical and mechanical properties, including high tensile strength, low elongation, and good dimensional stability.

They are highly flexible, allowing them to conform to the shape of the containment area. PVC geomembrane linings are commonly used in applications such as reservoirs, ponds, canals, and landfill liners, providing reliable water containment and environmental protection.

EIA Geomembrane Liners

Ethylene Interpolymer Alloy Liner

Developed to form a homogeneous blend of HDPE and EVA polymers. EIA is suited to water containment and environmental applications where good chemical resistance and high physical strength are necessary.

EIA Geomembrane Features

  • Excellent Chemical Resistance
  • Durable
  • UV Resistance

EIA Geomembrane uses & applications

Read More About EIA Geomembrane Linings
EIA (Ethylene Interpolymer Alloy) geomembrane linings are a type of synthetic polymer liner commonly used in various water containment applications. EIA geomembranes are manufactured using a blend of two different polymers, namely high-density polyethylene (HDPE) and ethylene-vinyl acetate (EVA), resulting in a geomembrane with excellent physical and mechanical properties.

EIA geomembrane linings offer good flexibility, elongation, and tensile strength, making them highly suitable for applications such as reservoirs, ponds, canals, and landfill liners.

They offer excellent chemical resistance, durability, and weatherability, ensuring long-term performance in harsh environmental conditions.

EIA geomembranes are easy to install, repair, and maintain, reducing the overall cost of ownership over time.

Geotextile Liners

Geotextiles are permeable fabrics used to provide protection and cushioning to a geomembrane or separate or filter different construction materials.  They are highly versatile and also allow for excellent filtration and drainage whilst being a highly cost-effective protective liner for civil and environmental applications.

Geotextile Features

  • Flexible
  • Durable
  • Cost–effective
  • Excellent Cushioning strength
  • Available in non-woven, woven (needle punched) or heat-bonded (structural woven) fabric

Geotextile uses & applications

Read More About Geotextiles
Geotextiles are a type of synthetic textile material designed for use in various civil engineering and environmental applications.

Geotextiles are made of synthetic fibres, such as polyester or polypropylene, and are designed to provide strength, stability, and filtration capabilities to soil and other materials. They are commonly used as a separation barrier between different layers of soil, as a reinforcement layer to increase soil stability, and as a drainage layer to facilitate water flow.

Geotextiles can also be used as erosion control materials to protect soil from the effects of wind and water erosion. Geotextiles come in various forms, including woven, non-woven, and knitted fabrics, and can be tailored to meet specific project requirements. They are widely used in applications such as road and railway construction, embankment stabilisation, shoreline protection, and drainage systems.

BGM Geomembrane

Bituminous Geomembrane

BGM liners are known for their excellent resistance to water, chemicals, and UV radiation, making them a practical and long-lasting solution for the containment of liquids or gases.

 

BGM Features

  • Durable
  • Flexible
  • UV Stable
  • Excellent chemical resistance

BGM Liner uses & applications

Read more about BGM Geomembrane liners

A bituminous geoliner (BGM) is a type of geomembrane made from a composite material that includes bitumen. BGM’s are used in the construction industry as a barrier to prevent the seepage of liquids or gases, such as water or chemicals. They made by combining bitumen with other materials, such as polymers, to create a durable and flexible sheet material that can be easily installed and sealed.

Bituminous geomembranes are highly durable, puncture-resistant, chemical resistant and have a long service life, which makes them an effective solution for long-term containment applications. Their excellent UV resistance makes BGMs ideal for use in outdoor applications where they can be welded or sealed together to form a continuous barrier.

Geomembrane Applications

Dam linings & pond linings

Geomembranes are widely used as liners for dams and ponds to prevent water seepage and protect the surrounding environment.

Dam and pond linings must be strong, durable, and able to withstand harsh weather conditions, UV radiation, and chemical exposure. HDPE or LLDPE geomembranes are often used in these applications due to their high puncture and tear resistance, flexibility, and long-term durability.

Dam and pond liners can be tailor-made to fit the size and shape of an area. Geomembrane liners can significantly reduce water loss due to seepage and are a great way to manage water sources and protect the environment. As geomembranes require minimal maintenance and can last for decades, they are a cost-effective containment solution.

Potable water reservoirs

Geomembranes are excellent for lining potable water reservoirs, ensuring safe and reliable drinking water storage. Potable water reservoirs must be lined with materials that meet stringent regulations to prevent contamination, leaks, and water loss.

Geomembranes are highly effective for reservoirs, as they offer excellent chemical resistance, low permeability, and high durability.

Geomembranes can be fabricated in large sizes and welded together using heat fusion techniques to create a seamless liner.

Geomembranes offer several advantages, including their resistance to corrosion, ultraviolet radiation, and bacterial growth, which ensures that the water remains pure and safe for consumption. They require little to no maintenance and can last for decades, making them a cost-effective solution.

Landfill capping and closures

Geomembranes are perfect for landfill capping and closure applications, as they provide an impenetrable barrier that prevents the release of contaminants into the environment.

Landfill sites contain various hazardous materials that can pollute groundwater, soil, and air. Therefore, it is crucial to cap and close them with reliable, durable, and long-lasting materials such as HDPE or LLDPE liners.

HDPE or LLDPE geomembranes have excellent tear, puncture and chemical resistance, making them ideal for landfill liners. Plus, they can be installed quickly and easily, minimising the risk of contamination during the closure process.

The use of geomembranes as landfill capping and closure materials is a cost-effective and environmentally friendly way to ensure the long-term containment of hazardous materials in landfills, protecting the environment and human health.

Tank linings

Geomembranes are an excellent choice for lining tanks in various industrial applications, ensuring the containment of hazardous or corrosive materials.

Tank linings are essential to protect the structural integrity of tanks and prevent leaks or spills that could cause environmental damage and safety hazards.

Geomembranes offer several advantages for tank linings, including their high chemical resistance, low permeability, and durability. They can be customised to fit the specific shape and size of the tank, and their excellent weldability ensures a seamless and leak-proof lining.

Geomembranes are resistant to ultraviolet radiation, temperature changes, and mechanical stress, ensuring long-term performance and stability whilst requiring little maintenance.

Retention ponds

Geomembranes are a practical and effective solution for lining retention ponds to prevent water loss and protect the environment.

Retention ponds are designed to collect and store excess water, such as stormwater runoff or wastewater before it is discharged into a waterway. Geomembranes, such as HDPE or LLDPE, provide an impermeable barrier that prevents water seepage and protects the surrounding environment from contamination.

Geomembranes are custom-made to fit the size and shape of the retention pond and are welded together to create a seamless lining.

Geomembranes offer high puncture and tear resistance, ensuring their durability and longevity. Additionally, geomembranes require little maintenance, reducing long-term costs.

Floating covers

Geomembranes are an excellent choice for floating covers in various water containment applications, such as reservoirs, lagoons, and ponds.

Floating covers are used to reduce water loss due to evaporation, control odours, and prevent the growth of algae and other microorganisms in the water.

Geomembranes provide a highly effective barrier that prevents water from escaping and protects it from external contaminants.  Geomembranes can be custom sized to fit the size and shape of the water containment area, and their excellent weldability ensures a seamless and leak-proof cover.

With high durability, puncture, and tear resistance, geomembranes can withstand harsh weather conditions and ultraviolet radiation, ensuring long-term performance and stability of the floating cover.