UGL Drylok Floor & Wall Clear Masonry Waterproofer Gallon 20913UGL Drylok Floor & Wall Clear Masonry Waterproofer is a non pigmented masonry waterproofer specially formulated to use on bare masonry floor and wall surfaces. Provides a durable, waterproof easy to clean, non yellowing high gloss finish. A versatile masonry waterproofer that can be applied interior, exterior, vertical, horizontal, above or below grade. Guaranteed to stop water up to 4 psi and resists 98 mph hurricane winds. Coats: Minimum 2 coats