High Performance Acrylic Polymer Modified Elastomeric Waterproofing MonoProof AEW is a three-layer system with coats in different colors ensuring proper build-up of the thickness, making it a reliable waterproofing system. MonoProof AEW is a two component acrylic modified elastomeric waterproofing which consists of specialty hard-wearing aggregates and liquid acrylic emulsion. It is a seamless, waterproof coating providing a tough and durable water tight coating which cannot be easily damaged or worn away. The coating is designed to re-face and even out variations in concrete and masonry surfaces.