Home › Products › Geomembranes & Liners › Geosynthetic Clay Liner (GCL)

Geosynthetic Clay Liner (GCL)

Sodium bentonite sandwiched between geotextiles — a self-healing clay barrier.

GCL combines sodium bentonite with woven and nonwoven geotextiles through needle-punching. On hydration it forms a gel-type waterproofing layer with permeability as low as 5.0×10⁻¹¹ m/s, ideal for landfills, artificial lakes and underground structures.

Send Inquiry Chat on WhatsApp

Features

Self-healing: bentonite swells to seal small punctures
Very low permeability (≤ 5.0×10⁻¹¹ m/s)
Fast, dry installation — no welding required
High tensile and peel strength needle-punched structure

Applications

Landfill base and capping systems
Artificial lakes, ponds and canals
Underground garages and basements
Roof gardens and pools
Oil depots and chemical storage yards

Key Specifications

Item	Value
Mass per unit area	4000 / 4500 / 5000 / 5500 g/m²
Roll width	1 – 6 m
Roll length	30 – 50 m
Swell index	≥ 24 mL/2g
Tensile strength	≥ 600 N/100mm
Water permeability	≤ 5.0×10⁻¹¹ m/s

Custom specifications available on request. Ask for the full technical datasheet.

Need pricing or a full datasheet?

Send us your project details and get a quotation with technical datasheets within 24 hours.

Get a Free Quote

Geosynthetic Clay Liner (GCL)

Features

Applications

Key Specifications

Need pricing or a full datasheet?

Related Products

HDPE Geomembrane

Composite Geomembrane