1mm thick Firestone EPDM Rubber pond liner £1.80p sq ft. Various sizes available | eBay
Malaysia 1mm 2mm Fish Shrimp Farm Pond Liner HDPE Geomembrane(id:10017417) Product details - View Malaysia 1mm 2mm Fish Shrimp Farm Pond Liner HDPE Geomembrane from The Best Project Material Co.,LTD - EC21