Drylok Floor and Wall High-Gloss Clear Water-Based Latex Masonry Waterproof Sealer 5 galProtect masonry surfaces with Drylok Clear Masonry Waterproof Sealer, a 5 gallon water based latex formula designed for concrete floors and walls. This high gloss, non yellowing finish provides a durable, waterproof barrier that resists wind driven rain, hydrostatic pressure, and mildew growth. Ideal for interior and exterior use on brick, stucco, cinder block, stone, and decorative precast items. ASTM tested and contractor approved, it complies with