Mapelastic AquaDefense Waterproofing Membrane - 1 Gallon Mapei's Mapelastic Aquadefense is a pre-mixed liquid-rubber waterproofing and crack-isolation membrane that can be easily applied before installing tile or stone in residential and commercial applications. This quick-drying membrane provides a thin, continuous barrier that protects adjacent areas from water damage. Features Rapid drying: Install tile after 30 to 50 minutes of drying time Time-saving: Flood-test as shower-pan liner after 12 hours of drying time Apply with a roller or brush; it is easy to install over flat, curved, or irregular surfaces Approximate coverage - 60 sq. ft. (5.57 m2) Bonds to a wide range of surfaces; convenient, user-friendly, and versatile No odor; great for confined spaces Prevents in-plane floor cracks from transmitting through tile or stone Where to Use Residential and commercial interior/exterior floors, walls, and ceilings Industrial interior floors and walls Tub and shower surrounds: bathrooms; kitchens; food prep, dishwashing, server, and cafeteria areas; countertops; and laundry rooms Residential and commercial submerged applications: freshwater pools, fountains, and water features (completely covered by ceramic tile) Cantilevered balconies and decks over unoccupied space (see the Limitation section) Balconies and decks over occupied space when used in conjunction with a primary waterproofing membrane Steam rooms and steam showers (refer to TCNA handbook sections SR613 and SR614 or TTMAC 319SR and 321SR) Meets ASTM E-96 Procedure E for a low perm waterproof membrane In-plane crack isolation up to 1/8" (3 mm) over nonstructural cracks