Smooth HDPE geomembrane liner, also known as high density polyethylene geomembrane liner, is the very low permeability synthetic membrane liner or barrier used with any geotechnical engineering related material so as to control fluid or gas migration in a human-made project, structure, or system. GEOSINCERE brand smooth HDPE geomembrane liner is made from finest quality virgin high density polyethylene (HDPE) with specially formulated, combined with specified quantity carbon black, antioxidant, anti-aging agent and UV resistance components, which makes our geomembrane product with excellent resistance to UV radiation and is suitable for exposed conditions.