It is composed of 3 levels. The upper level and the lower level are woven geotextile and non woven textile.
The middle level is bentonite grains, which are carefully selected crude and filled in between the two levels after special processing.
This geosynthetic clay liner is a kind of new green waterproof materials, which are widely applied in many waterproof construction projects.
GCL can be applied separately, or combined with high density polyethylene (HDPE).
