HDPE Liners (High Density Polyethylene) is special form of polyethylene that has longer carbon strings with less branching. The result is a more compactable molecule and a higher density. HDPE Liners is available smooth or with texturing called Micro spike® to increase the slip coefficient. HDPE Liners is shipped in large rolls and mechanically deployed. All seams are made in the field using heat fusion or a tape designed for geo synthetics. HDPE Liners is slightly less expensive than other materials, but has a higher cost of installation. It can be cost effective in large projects. HDPE Liners should only be installed by qualified professionals.