Geomembrane ensures reliable containment solutions

Carbofol® geomembranes are high-density polyethylene (HDPE) liners designed to provide exceptional barrier performance against a wide range of chemical and biological contaminants. Manufactured in various thicknesses and up to 7.5 metres in width, these geomembranes are ideal for applications such as landfill base seals, caps, groundwater protection, and water conveyance structures like canals and ponds. Their high melt flow rate facilitates efficient on-site welding, ensuring secure and impermeable seams. Additionally, Carbofol® geomembranes feature white edge markings and protective strips to maintain clean welding areas, enhancing installation quality and longevity. With excellent chemical resistance and durability, Carbofol® provides a dependable solution for environmental protection and containment needs.

Carbofol® geomembranes

The Carbofol® range of geomembranes is manufactured from high quality polyethylene raw material and is available in a range of thicknesses and widths up to 7.50m. For technical applications on slopes, Carbofol® is available with a structured surface on one or both sides.

Typical solutions with Carbofol®

  • Landfills at the base and on the surfaces

  • Structures, canals, basins, and ponds

  • Tunnels and structures

  • Mining

  • Areas and facilities where substances hazardous to water are stored, filled, transferred, produced, treated, or used (groundwater protection according to WHG)

Advantages for your Project

  • Excellent long-term chemical resistance

  • High contact friction angles and direction-independent shear force transmission due to embossed surface structure

  • Installation advantages with due to sheets up to 7.50 m wide rolls

  • Also available with BAM, DIBt, ASQUAL approval or according to GM-13

  • High weldability of the material due to specific selection of raw materials and masterbatches

Specific advantages of Carbofol®

Advantage 1: Carbofol® long-term durability

Durability and high chemical resistance are ensured by carefully selected resins and a special stabilising system, which is aligned with the resin type. An enormous amount of field and lab data supports this performance.

Advantage 2: Special embossed surface structure allows a safe construction on steep slopes

Special surface structures ensure reliable sealing even on steeper slopes. These embossed structures printed in the mass during manufacture make Carbofol® safe and durable in every point. Carbofol’s homogeneous structures offer maximum security with regard to the reproducibility of friction tests. This is evidenced by an extensive series of laboratory tests.

Advantage 3: Weld protection strips and lateral marking

The Carbofol® geomembranes are provided with a white edge mark on both sides. These edge marks indicate the recommended areas of overlapping and are a visual aid during the installation. Furthermore, a thin protective sheet (~ 150mm wide) is attached to both edges and is peeled off immediately prior to the welding process to provide an absolutely clean welding area.

Advantage 4: High melt flow rate

Carbofol® geomembranes feature a melt flow rate (MFR) between 1 and 3g/10 minutes tested at 190°C/5kg and thus have the advantage of a large welding window. This is a factor which makes the Carbofol® geomembranes flexible and easy to handle during on-site installation. The speed at which welding processes can be carried out on Carbofol® geomembranes is distinctly higher than that of other liners with an MFR less than 1g/10min. This gives Carbofol® yet another major benefit during on-site installation and welding.

Chemical resistance from Carbofol® HDPE geoembranes based on German DIBt regulations

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