The System III moisture barrier forms a seamless and redundant moisture barrier with a spray-applied Ecoline-S waterproofing membrane sandwiched between layers of Ecoshield-P, a polymeric geo-membrane laminate. It provides a tough and puncture-resistant barrier that bonds with the concrete slab, eliminating any migration path for the water. You can repair it easily without sacrificing its integrity. EPRO Services Inc. 800-882-1896.