

Dry Proof 507 is a cement-based, two-component, acrylic polymer modified coating that is easily applied by brush, roller, trowel, or spray. When dry, it forms a flexible, high-quality waterproof membrane for concrete, cementitious, and masonry substrates. Dry Proof 507 is composed of specially selected high strength cements, well-graded fillers, and additives in powder form, together with a liquid component of styrene acrylic polymer dispersion and wetting agents. It remains breathable whilst stopping water running.