Saltwater Paraseal is an elastomeric, sheet waterproofing membrane specially designed for waterproofing applications in areas where saline, alkaline, acid, etc. conditions exist. It is a composite sheet manufactured to controlled thicknesses of 3.75mm - 5mm composed of tough, high density polyethylene (HDPE) and polymer treated, expandable, quality granular bentonite. The specially treated Bentonite is laminated at a rate of up to one pound per square foot to an impermeable HDPE sheet forming a superior Dual Waterproofing System for application to horizontal and vertical surfaces.