WR Meadows Hydrastop SA is a composite peel-and-stick waterproofing membrane made from a non-woven fabric, elastomeric membrane, and coated release paper. When concrete is poured against the Hydrastop SA and cures, it forms a strong mechanical bond that locks the membrane to the concrete surface.
This high-performance system is composed of the MEL-DRAIN composite drainage board and the Hydrastop SA membrane. It offers drainage and waterproofing in one convenient package. It is designed to be used below grade and offers consistent adhesion and durable moisture protection where it is most needed.