High Density Polyethylene Liners are produced from virgin polyethylene resins. Linear low density polyethylene plastic has outstanding flexibility and elongation characteristics. There are no theoretical limits to the size of the liner panels that we can prefabricate but there are some practical limits, notably panel weight. Each and every liner panel we produce is a custom panel. The way we set up our shop is unique in that our shop welders produce prefabricated panels to best match your containment area.