Mapei Mapelastic Smart is a two-component, highly flexible cementitious waterproofing mortar designed for waterproofing and protecting concrete, masonry and other cementitious surfaces. It forms a flexible, waterproof protective membrane capable of bridging cracks greater than 2 mm, making it suitable for surfaces exposed to minor movement, vibration and cracking.
Key Features
- Two-component cementitious waterproofing system.
- High flexibility with crack-bridging capacity >2 mm.
- Suitable for horizontal and vertical surfaces.
- Can be applied by brush, roller or spray.
- Provides protection against water penetration and aggressive environmental agents.
- Resistant to UV exposure.
- Suitable for use underneath ceramic tiles, mosaics and natural stone.
- Can be used on existing coverings when properly prepared.
- Certified to EN 1504-2 and EN 14891.
Common Applications
Mapelastic Smart is suitable for:
- Balconies and terraces
- Bathrooms and showers
- Swimming pools
- Water tanks, basins and reservoirs
- Hydraulic channels and dams
- Concrete foundations and structures
- Cementitious renders and screeds
- Concrete structures with shrinkage or minor movement cracks
- Protection of concrete against chlorides, sulphates and carbon dioxide
- Waterproofing surfaces before installing ceramic or stone finishes.
Technical Specifications
| Specification | Details |
|---|---|
| Product type | 2-component flexible cementitious mortar |
| Components | A: cementitious powder + B: polymer liquid |
| Mixing ratio | A:B = 2:1 |
| Consistency | Fluid / brushable |
| Pot life | Approx. 1 hour at 20°C |
| Application temperature | +5°C to +40°C |
| Minimum thickness | 2 mm in 2 coats |
| Crack bridging | >2 mm |
| Application | Brush, roller or spray |
| Consumption – roller/trowel | Approx. 1.6 kg/m²/mm |
| Consumption – spray | Approx. 2.2 kg/m²/mm |
| Packaging | Commonly 30 kg kit: 20 kg powder + 10 kg liquid |
| Classification | EN 1504-2 / EN 14891 |
| Emissions | EMICODE EC1 R Plus |







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