Insl-X WaterBlock White Water-Based Latex Waterproofing Concrete Stain 1 gal

WaterBlock Acrylic Masonry Waterproofer is designed to seal interior and exterior masonry surfaces such as basement walls, foundations and retaining walls. WaterBlock is alkali-resistant and provides positive sealing and waterproofing over bare concrete block, brick, stucco or tilt-up concrete walls. • Seals vertical masonry surfaces • Withstands up to 12 psi hydrostatic pressure (when used properly) • High alkali resistant – up to pH-13 • Provides a mold- and mildew-resistant coating • Water based and fast dry • Cinder and concrete block