Division 02 · Geosynthetics

Sixteen products.
One quality system.

HDPE geomembrane, geotextile, GCL, drainage and waterproofing for mining, landfill, road and water projects — with the test reports your engineer asks for.

Twelve products, one supply chain

Every line below is a product we quote on and ship, not a catalogue entry. Width, roll length, thickness and grammage are agreed per order against the contract.

HDPE geomembrane

HDPE geomembrane

0.5–3.0 mm

Smooth, single-textured or double-textured. Landfill, tailings, biogas digesters and reservoirs. The main barrier on most projects.

Impermeable membrane

Impermeable membrane

0.3–3.0 mm

The thin end of the HDPE range, used where the head of water is low: ponds, fish and shrimp farms, storage basins.

Filament geotextile

Filament geotextile

100–800 g/m²

GB/T 17639-2023. Higher strength and better creep behaviour; filtration, reinforcement, dam protection and membrane protection.

Staple-fibre geotextile

Staple-fibre geotextile

100–800 g/m²

GB/T 17638-2017. Even, economical, and the usual choice for separation, filtration, curing and protecting a liner underneath.

Composite geomembrane

Composite geomembrane

membrane 0.2–3.0 mm

GB/T 17642-2025. One-geotextile, one-membrane, two-cloth-one-membrane and three-cloth-two-membrane constructions, made to the drawing.

Two-geotextile, one-membrane

Two-geotextile, one-membrane

200–600 g / 0.5–2.0 mm

The most common composite structure: membrane in the middle, fabric on both faces. Canals, reservoirs, river works.

One-geotextile, one-membrane

One-geotextile, one-membrane

200–400 g / 0.5–1.5 mm

Lighter and cheaper than two-cloth. Canals, small storage basins, the upper layer of a composite lining.

Tunnel waterproof board

Tunnel waterproof board

1.0–3.0 mm

EVA, HDPE or ECB sheet to GB/T 18173.1-2012. Road and rail tunnels, metro, underground works and culverts.

Drainage geocomposite

Drainage geocomposite

geonet core + 2 fabrics

Geonet core thermally bonded between two geotextiles. Leachate, groundwater and cap infiltration drainage. CJ/T 452-2014.

Bentonite waterproof mat (GCL)

Bentonite waterproof mat (GCL)

sodium bentonite

Bentonite granules needle-punched between two geotextiles. Swells and self-heals when wet. JG/T 193-2006. Landfill, lakes, basements.

Ecological bag

Ecological bag

UV-stabilised fabric

Filled with soil and planted. Slope protection, revetment, road and rail embankment greening, ecological repair.

Cement mat (concrete cloth)

Cement mat (concrete cloth)

5–20 mm

Three-dimensional fibre frame with a cementitious powder. Water it and it sets. JC/T 2884-2025. Channels, slopes, emergency repair.

On specifications: the figures above are the range produced for each family. The binding values for your order — thickness, mass per unit area, tensile, tear, puncture, OIT — are stated in the technical data sheet issued against that order. Ask for it before you design.

Stock, loading and site

Photographed in stock, at loading and on site. Roll width, roll length and packing are agreed per order.

Geosynthetics stock held for project orders
Stock held for project orders
Geotextile rolls loaded into a container
Rolls loaded, container count agreed
Geomembrane installation on site
Liner installation on site
Textured HDPE geomembrane close-up
Textured surface, for slope friction
HDPE geomembrane rolls in the yard
HDPE rolls, labelled by grade
Textured HDPE geomembrane surface
Textured membrane, close up
Composite drainage geonet
Drainage geonet, core and filter
Liner installed in a containment basin
Typical application, containment basin

Why it is used, and where

A liner is not chosen by thickness alone. It is chosen by what it has to hold back. These are the situations we supply for — the problem first, then the material that answers it.

Landfill

The problem: Leachate carries a high organic load, ammonia and heavy metals. A single leak contaminates groundwater for decades, and the clean-up cost dwarfs the cost of the liner.

What we supply: Smooth HDPE 1.5 mm (2.0 mm where the waste heap is tall), GCL, drainage geonet

Typical thickness: 1.5–2.0 mm

Tailings dams

The problem: Tailings water carries heavy metals, acid or alkali, and flotation reagents. It attacks the material in ways ordinary water does not.

What we supply: Textured or column-point HDPE, GCL as a secondary barrier, drainage geonet

Typical thickness: 1.5–2.5 mm

Biogas digesters

The problem: Animal slurry is high in organic matter and ammonia, and the pond is covered — so the liner is the only barrier between the slurry and the groundwater underneath.

What we supply: Black HDPE for both the base and the gas cover, short-staple geotextile for protection

Typical thickness: 1.0–1.5 mm

Sewage and oxidation ponds

The problem: Industrial and municipal effluent combines organic load with acid, alkali and solvents. Long exposure accelerates ageing and stress cracking.

What we supply: Smooth HDPE or composite geomembrane, geotextile protection layer

Typical thickness: 1.5–2.0 mm

Reservoirs and water storage

The problem: A permeable basin loses water continuously. In dry regions the cost of refilling is the cost of the project.

What we supply: Composite geomembrane (two fabric / one membrane), smooth HDPE

Typical thickness: 0.75–1.5 mm

Artificial and landscape lakes

The problem: Water level has to stay stable, and the liner has to coexist with planting and aquatic life rather than sterilise the bed.

What we supply: GCL, composite geomembrane, short-staple geotextile

Typical thickness: by design

Oil and fuel tank farms

The problem: Hydrocarbons seep into soil and groundwater and stay there. Remediation is slow, expensive and closely regulated.

What we supply: Double HDPE liner with a detection layer between, long-staple geotextile

Typical thickness: 1.5–2.5 mm

Slope and channel protection

The problem: Moving water scours the toe, the slope face fails, and the failure propagates upstream.

What we supply: Cement blanket, eco-bag, woven or nonwoven geotextile as a filter layer

Typical thickness: by design

Aquaculture ponds

The problem: Seepage wastes water and lets pathogens cross between ponds. The liner also has to survive cleaning and desilting.

What we supply: HDPE aquaculture liner, short-staple geotextile

Typical thickness: 0.5–1.0 mm

On thickness: the figures above are the ranges we normally supply for each application. The thickness that governs your project is set by the design, the head of water or waste, the chemical environment and the subgrade — not by this page.

The standard your engineer will ask about

Our landfill liner is made to CJ/T 234-2006, which is equivalent to US GRI-GM13 — so the specification maps onto the ASTM language already in your design.

Property (HDPE, 1.5 mm)ValueWhy it matters
Tensile yield≥22 N/mmResists installation damage
Tensile break≥40 N/mmSurvives differential settlement
Elongation at break≥700%Stretches over uneven subgrade
Tear resistance≥190 NTears do not run
Puncture resistance≥480 NStones and rubble do not perforate
Carbon black2.0–3.0%UV protection in exposed service
OIT≥100 minOxidation life in the ground
What we will not do: claim full GM13 compliance without a test. Third-party ASTM / SGS testing can be arranged on the batch — tell us the specification and we quote it separately.

Current standards

A test report is only worth reading if it names the standard edition it was tested against. Several of these changed recently — check the year in the report, not just the number.

StandardTitleIn forceNote
GB/T 17643-2025Polyethylene geomembrane2025-11-01Supersedes 17643-2011
GB/T 17642-2025Nonwoven composite geomembrane2025-11-01Supersedes 17642-2008
GB/T 17639-2023Filament spunbond needle-punched geotextile2023-12-01Supersedes 17639-2008
GB/T 17638-2017Staple fibre needle-punched geotextile2017-12-01Reaffirmed 2024
GB/T 18173.1-2012Polymer waterproofing sheetscurrentTunnel waterproof plate
CJ/T 452-2014Geonet for landfill drainagecurrentLeachate drainage
JG/T 193-2006Sodium bentonite geosynthetic clay linercurrentGCL
JC/T 2884-2025Geosynthetic cementitious composite mat2025-11-01Cement blanket
GB/T 50290-2014Technical code for application of geosynthetics2015-08-01Design, installation, inspection
GB 16889-2024Standard for pollution control on landfills2024-09-01Supersedes GB 16889-2008
How to check a supplier: ask for the test report and read the standard year on it. A report quoting GB/T 17643-2011 is testing against a superseded edition, whatever the quotation says.

Where it goes

Mining and tailings

Textured and column-point HDPE, GCL and drainage geonet. Heat, UV and steep slopes.

Landfill

Smooth HDPE 1.5 mm, GCL and drainage geonet. Leachate containment and gas venting.

Road and rail

Filament, PP needle-punched and hot-rolled geotextile. Separation, filtration, subgrade reinforcement.

Water storage

Smooth HDPE 1.0–2.0 mm for reservoirs and process ponds in evaporative climates.

Aquaculture

HDPE liner 0.75–1.5 mm. Water saving and a clean pond bottom.

Tunnel and underground

EVA waterproof plate and drainage plate. Waterproofing plus drainage behind the lining.

What ships with the roll

TDS

Technical data sheet for the exact grade and thickness supplied.

COA

Batch certificate: density, tensile, tear, puncture, carbon black, OIT.

Roll list

Every roll with batch number, matched to the packing list.

Loading plan

Container count calculated before freight is quoted.

Application, area, destination port.

Three things is enough for a specification recommendation and a price — usually within 48 hours.

Second line, if the first is busy: +86 190 2603 6739

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