Geosynthetic Clay Liners (GCLs)

GCLs are high performance environmental liners comprised of a layer of low-permeability sodium bentonite combined with geosynthetic carriers such as woven and/or nonwoven geotextiles and in some cases polymer geomembranes. GCLs have been proven to provide better engineered performance and durability than several feet of compacted clay with a total composite thickness of less than one quarter of an inch.

  • Wetlands
  • Golf Course & Irrigation Ponds
  • Agriculture Waste Pits
  • Canal Liners
  • Waste Water Treatment Ponds
  • Landfill Covers

To view the properties of a specific GCL, click on any of the products below.

Product

GSI Item #
GRANULAR BENTONITE (50lb bag) LBENTON

 

Seaming a GCL consists of little more than an overlap, filled with a layer of loose, granular sodium bentonite.
 
 

Product

GSI Item #
CLAYMAX200R LCLAYMAX200R

Sold in 15ft rolls, 150ft long, 2250sf/roll, 15 rolls/truck

Claymax® 200R is a non-reinforced GCL designed for flat areas. Self sealing.
 
 
CLAYMAX600CL LCLAYMAX600CL

Sold in 15ft rolls, 150ft long, 2250sf/roll, 15 rolls/truck

Claymax® 600CL is a non-reinforced GCL w/a thin composite laminate designed for flat areas w/high hydraulic heads.
 
 
BENTOMAT ST LBENTST

Sold in 15ft rolls, 150ft long, 2250sf/roll, 15 rolls/truck

Bentomat ®ST is a reinforced GCL w/high internal shear strength for use on medium grade slopes.
 
 
BENTOMAT DN LBENTDN

Sold in 14.5ft rolls, 150ft long, 2175sf/roll, 15 rolls/truck
Bentomat® DN is a reinforced GCL w/high internal shear strength & interface friction for use on steep slopes.
 
 
BENTOMAT SDN LBENTSDN

Sold in 14.5ft rolls, 150ft long, 2175sf/roll, 16 rolls/truck
Bentomat® SDN is a reinforced GCL w/high internal shear strength & interface friction for use on steep slopes where liner contact is critical.
 
 
BENTOMAT CL LBENTCL

Sold in 15ft rolls, 150ft long, 2250sf/roll, 15 rolls/truck

Bentomat® CL is a reinforced GCL w/a thin composite laminate for multipurpose use in areas w/high hydraulic head.
 
 
BENTOMAT CLT LBENTOCLT

Sold in 15ft rolls, 150ft long, 2250sf/roll, 15 rolls/truck
Bentomat® CLT is a reinforced GCL w/a textured laminate for use on steep slopes w/high hydraulic head.