HDPE Fish Pond Liner offered is an impermeable geomembrane used for retention of liquids, including the lining of reservoirs, retention basins, hazardous and non-hazardous surface impoundments, garden ponds and artificial streams in parks and gardens. This pond liner is both tough and flexible, with high resistance to chemicals and corrosion. HDPE Fish Pond Liner can be fusion weld together, forming permanent seals in the field. Although polythene pond liners are available for the home gardener, there is little to recommend them apart from their low cost. Polythene is only useful in water garden construction as the filling of a sandwich in a naturally managed pond.