Elastomeric Cementitious Coating (2K)
(Vapor-Permeable & Superior Crack-Bridging Specification)
Product Overview
The engineered solution for structural waterproofing where aggressive
substrate integration is mandatory. This two-component (2K), polymer-modified cementitious system is formulated from high-tenacity acrylic resins and micro-fine mineral cements. Upon curing, it forms a seamless, fiber-reinforced elastomeric shield that achieves a profound chemical and mechanical bond
with concrete and masonry, ensuring long-term integrity even in environments subject to permanent moisture and dynamic structural movement.
Core Advantages
▪ Active Crack-Bridging Resilience: Engineered with an exceptional elongation profile (>300%), this
membrane functions as a flexible “skin” for rigid substrates. It is specifically designed to accommodate
and bridge structural micro-cracks, protecting the assembly from water ingress even under the stresses
of thermal cycling and minor settlement.
▪ Vapor-Permeable (Breathable) Matrix: Unlike standard liquid polymers, this mineral-based system
allows the substrate to “breathe.” Its optimized vapor-permeability prevents the build-up of osmotic
pressure and blistering, making it the premier choice for application on damp green concrete or in subterranean environments.
▪ Monolithic Sub-Tile Integration: The high-friction mineral surface is specifically designed for the direct application of cementitious adhesives. It creates an inseparable, monolithic bond with thin-set mortars, ensuring the longevity of expensive stone and tile installations in high-load wet areas.
▪ Non-Toxic & Potable Water Compliant: Formulated with zero VOCs and no hazardous solvents. Its
inert, mineral composition is safe for contact with potable water, making it a sustainable choice for
water features, cisterns, and eco-conscious residential developments.
Engineered Applications
▪ Critical waterproofing for high-humidity internal wet rooms (luxury bathrooms, industrial kitchens).
▪ Flexible protection for exterior balconies, terraces, and podium decks prior to tile cladding.
▪ Structural waterproofing for concrete water tanks, fountains, and subterranean retaining walls.
▪ Ideal for refurbishment projects on damp concrete where moisture-sensitive coatings (PU/Epoxy)
are prone to failure.
System Integration: The Breathable Structural Defense Matrix
To fully capitalize on the vapor-permeable and elastomeric properties of a 2K Cementitious system, you must respect its physical boundaries. While it excels on damp substrates and provides a perfect direct-to-tile mineral surface, it is fundamentally a cement-based matrix. It cannot arrest active hydrostatic leaks, bridge gaping structural voids, or chemically bond to vibrating PVC plumbing. Eliminate catastrophic water tank failures and luxury wet-room leaks by integrating these mandatory structural components:
Active Leak Arrest & Hydrostatic Void Fortification:
Must pair with: Industrial Ultra-Rapid Setting Hydraulic Cement
Why it’s critical: While the 2K coating is “damp-tolerant,” applying it over an active water leak in a subterranean wall or concrete water tank will result in the uncured slurry being washed away. Furthermore, 90-degree internal corners concentrate massive hydrostatic stress. This ultra-rapid hydraulic matrix must be deployed first to instantly plug active leaks and construct rigid 45-degree cant strips (fillets) at all wall-to-floor junctions, ensuring the flexible 2K coating is supported by a crush-proof foundation.
Dynamic Corner & Transition Reinforcement (The Skeletal Matrix):
Must pair with: High-Tenacity Elastomeric Flash-Bond Matrix
Why it’s critical: In luxury balconies and podium decks, structural settlement generates extreme shear stress at the wall-to-floor perimeters. Even with 300% elongation, a liquid cementitious coating will eventually fatigue and tear at these sharp transitions if applied in isolation. This cold-applied, non-woven butyl tape must be centered over all angular transitions. It acts as a high-tensile “skeleton” that absorbs kinetic energy, while its fleece surface completely integrates with the cementitious slurry to prevent edge-tearing.
PVC Drain & Plumbing Penetration Isolation:
Must pair with: Architectural High-Performance PU Sealant
Why it’s critical: Floor drains, pipe boots, and PVC plumbing penetrations are the highest-risk zones for water ingress in any wet-room. Cementitious coatings undergo micro-shrinkage during curing and cannot form a permanent chemical bond with smooth plastics. Brushing the 2K coating directly against a PVC pipe guarantees a capillary leak. This dynamic polyurethane sealant must be heavily extruded around all drain flanges to create an elastomeric, watertight gasket before the cementitious membrane is applied.