MAPEI Mapelastic AquaDefense is a ready-to-use, professional-grade liquid membrane that creates a seamless, water-tight barrier. It is essential for protecting substrate materials like plywood or gypsum board in wet areas such as showers, steam rooms, and bathrooms. When dry, it forms a flexible, rubbery film that protects the assembly against water penetration and allows for minor structural movement without tearing the membrane. One of its key advantages is the rapid cure time; it is generally ready to receive tile after 30 to 50 minutes of drying time, depending on ambient conditions. However, users must ensure the membrane is applied at the specific dry-mil thickness outlined in the technical data sheet to be code-compliant. This is not a substitute for proper wall construction or slope-to-drain requirements. For shower pans, ensure the membrane is integrated correctly into the clamping drain system to prevent catastrophic water damage. We strongly recommend professional verification of shower waterproofing to meet local building codes.
Key considerations
- MAPEI AquaDefense
- shower waterproofing
- liquid membrane for tile
- MAPEI
- Waterproofing
- Shower