... quality geosyntheitcs clay liner 2,Clay liner have good tightnes,water prood 3,good flexbility 1.Specifications1,one side is geotextile ,one side ... clay.The excellent properties make the products ideal for many projects.3.Features:GCL is Natural Material,well duiability,non-toxicity,no ... after WettingASTM D 5321≥24Kpa typical 5500g/m2 Geosynthetic Clay liner for landfill