HDPE thickness is between 0.2mm and 2.0mm, width from 4m to 7m; LDPE thickness from 0.3mm to 2.0mm, width from 4m to 7m.They are used in landfill caps and base liner applications under roads, railways, secondary containment for above ground tank farms, as well as within various other containment structures such as dams, canals, ponds, rivers and lakes. They are also used for waterproofing of buildings and other similar structures.