BENTOMAT Geosynthetic Clay Liners normally consist of three components: The geotextile top layer, the bentonite granules and the geotextile base layer.
As a rule, the geotextiles consist of a mechanically-bonded, non-woven fabric on one side and a woven geotextile on the other side. All the components of the layers are mechanically bonded by needle-punching over their entire area and are filled uniformly with bentonite granules.
This ensures that the bentonite is optimally embedded and prevents material loss and rearrangement during transport and installation. The use of bentonite granules instead of the conventional bentonite powder avoids the problem of dust production.