CCW MiraCLAY EF has a uniform layer of sodium bentonite clay that is sandwiched between a durable puncture-resistant nonwoven polypropylene fabric and a high-tensile strength woven polypropylene fabric and then needle punched together with thousands of high-strength denier yarns. These fibers are then thermally fused to the polypropylene in a proprietary Infrabond procedure that locks the sodium bentonite into place.

MiraCLAY EF is designed for waterproofing below-grade structural slabs as well as construction methods incorporating lagging, concrete caisson, or shotcrete retention walls. MiraCLAY EF is also very effective in rehab waterproofing and zero clearance property line construction.