This high-performance, two-component flexible cementitious mortar is engineered for waterproofing concrete and masonry surfaces that are exposed to both positive and negative hydraulic pressure. Ideal for use in environments where water ingress or pressure is a concern, it creates a durable, seamless barrier that adheres excellently to a variety of substrates.
The mortar system consists of a powder (Component A) and a liquid polymer (Component B), which when mixed together form a flexible, waterproof coating. It is especially suitable for underground and below-grade applications where structural movement or vibration may occur.
Key Applications
This waterproofing solution is perfect for concrete and masonry structures that need robust, long-lasting protection from water. Common use cases include:
Concrete retaining walls
Underground car parks and basements
Sunken swimming pools and basins
Lift pits
Foundation walls and channels
Breeze-block walls (pre-treated with appropriate MAPEI mortar)
It is highly effective against counterpressure (negative pressure), making it ideal for areas where water pushes from the outside in—such as basements and foundation walls below the water table.
Packaging Details
The product is available in 32 kg kits, composed of:
Component A: 22 kg bag (cementitious powder)
Component B: 10 kg tank (liquid polymer additive)
This flexible system allows easy mixing and application on vertical and horizontal surfaces, offering professional-grade results for both new construction and refurbishment projects.
