Texturing decision
Use CLT100 where the required interface response cannot be achieved by the smooth CL laminate. Confirm actual soil/CLT and opposite-side interfaces at project stress and hydration.
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GCL TECHNICAL DATAMANUFACTURING ROUTECETCO® / Minerals Technologies Inc.
AUSTRALIAN ROUTEKontain technical sales, quoting + project support
TECHNICAL DATA SHEET · AUSTRALIAN FORMAT
BENTOMAT® CLT100
1.0 mm double-sided textured PE-membrane-laminated GBR-C
A reinforced sodium-bentonite GCL laminated to a flexible 1.0 mm double-sided textured polyethylene membrane for liquid containment and improved interface friction.
Kontain position
A provisional textured-laminate pathway where the smooth BENTOMAT CL interface may not meet veneer-stability demand. Site-specific shear testing still governs.
FORMATAustralian SI units
SOURCECETCO EMEA TDS, October 2018
STATUSKontain technical summary
ISSUED24 July 2026
PUBLISHED PERFORMANCE
Metric values, with the test conditions visible.
Values below are presented in Australian engineering units. CETCO’s published ASTM methods are retained; the units have changed, not the underlying test method or acceptance basis.
PE membrane1.0 mm textured
Total mass5.20 kg/m² typical
MD / CMD tensile22 / 22 kN/m typical
CBR puncture3.5 kN typical
| Property | Published / specified value | Test method | MQC / published frequency |
|---|---|---|---|
| Hydraulic conductivityTDS statement; essentially impermeable membrane under the stated test | No measured flow | ASTM D5084 | Periodic |
| Total mass per unit area | 5.20 kg/m² typical | EN 14196 | 1 per 5,000 m² |
| Bentonite mass per unit areaReported at 12% moisture content | 4.00 kg/m² typical | EN 14196 | 1 per 5,000 m² |
| Tensile strength - MD / CMD-2.0 kN/m tolerance | 22 / 22 kN/m typical | EN ISO 10319 | 1 per 5,000 m² |
| Elongation at break - MD / CMD | 20% typical | EN ISO 10319 | 1 per 5,000 m² |
| CBR puncture resistance-0.5 kN tolerance | 3.5 kN typical | EN ISO 12236 | 1 per 5,000 m² |
| Peel strength | 300 N/m typical | ASTM D6496 | 1 per 5,000 m² |
| Finished thickness | 8.0 mm typical | EN ISO 9863-1 | 1 per 5,000 m² |
| Bentonite swell index | 25 mL/2 g typical | ASTM D5890 | 1 per 5,000 m² |
| Bentonite fluid loss | ≤ 18 mL | ASTM D5891 | 1 per 5,000 m² |
| Nonwoven geotextile mass | 200 g/m² | EN ISO 9864 | Supplier certified |
| Woven geotextile mass | 100 g/m² | EN ISO 9864 | Supplier certified |
| Double-sided textured PE membrane thickness | 1.0 mm | EN ISO 9863-1 | Supplier certified |
| Typical roll | 5.0 m × 40.0 m | Manufacturer declaration | Continuous |
* Published typical peak value after hydration at approximately 9.6 kPa normal stress; not a minimum design envelope. † Published RESISTEX U20 ST maximum in deionised water and 0.02 M CaCl₂. Current factory certificates and project specifications govern.
DESIGN TRANSPARENCY
What still needs to be verified.
A compliant index value does not remove project-specific hydraulic, stability or installation risk.
Guide evidence
The CETCO CL/CLT guide reports indicative average peak/residual soil-interface angles of 32°/25° for the tested textured membrane, compared with 25°/23° for smooth CL geofilm. These are not transferable design values.
Mass basis
The CLT100 sheet reports bentonite mass at 12% moisture content. Do not compare it directly with dry-mass values without normalising the basis.
System boundary
CLT100 remains an overlapped laminated barrier, not a field-welded geomembrane. Seams, penetrations, confinement, wrinkles, cover and uplift still require design.
SUPPLY + CUSTOMISATION
Quote the configuration the project actually needs.
Approximately 209 m² gross and 200 m² effective after standard overlaps. Confirm current factory dimensions, mass and origin for every order.
A budgeting assumption only. Final payload and pack plan require CETCO confirmation. Full production and freight lots generally support the strongest landed rate.
Alternative reinforcement and RESISTEX formulations can be evaluated where slope demand, adjoining interfaces or site liquid require a different configuration.
SOURCE + CONTROL
Kontain presentation. CETCO source data.
This webpage is a Kontain-prepared Australian presentation of CETCO published data. It is not a manufacturer reissue and should not be used to override a current CETCO TDS, certificate of analysis, project specification or engineering assessment.