Product description(http://www.jcppfabric.com/HDPE-geomembrane_664.html): Email:jc@heartask.com HDPE geomembrane are the preferred products for lining projects requiring low permeability , corrosion protection , exceptional chemical and ultraviolet resistance properties.Our products have been certificated by ISO9001:2000,ISO14001:2004 and CE Certifications. The HDPE geomembrane is mainly a high density polyethylene liner made of and high molecular weight, high resistance to ultraviolet rays, 700% coefficient of expansion and high tensile strength. Basically used as impervious barrier to water action, chemicals, petrochemicals, solid wastes (industrial and urban) and mining. So as the storage, conservation for water treatment and aquaculture usage, on very different substrates, as soil, sand, concrete or steel. Characteristics: 1.Anti-corrosion and anti-seepage 2.Smooth and wide usage 3.Higth intensity, good performance