Cormix flexible surface membranes combine crystalline waterproofing technology with elastomeric flexibility, delivering a durable and adaptable barrier for concrete structures. Applied by brush, roller, or spray, the membrane forms a seamless coating that bridges micro-cracks and accommodates minor movement while preventing water ingress.
The crystalline components penetrate into the concrete to form a subsurface waterproof zone, while the flexible surface layer provides added protection against weathering, surface cracking, and prolonged moisture exposure.
This dual-action system makes it suitable for both positive and negative-side waterproofing applications and ideal for structures where dynamic behavior or thermal expansion must be considered.
Key Features :
- Can be applied onto damp concrete without waiting for dry surfaces
- Provides dual waterproofing: flexible crack-bridging membrane + permanent internal crystallization
- Excellent elongation and crack-bridging capability for dynamic concrete structures
- Very fast curing (approx. 2–3 hours depending on temperature & humidity)
- Fully bonded, seamless system — no joints, no anchoring, no mechanical fixing
- Ideal for spraying large areas, uneven surfaces, or complex geometries
- Strong adhesion to concrete, shotcrete (including steel fibre shotcrete), and steel
- Compatible with other waterproofing systems and easy to overcoat within 24 hours
- Highly resistant to aggressive groundwater and chemical exposure
- Durable, non-flammable, zero VOCs — safe for confined spaces
- Easy to repair, no undercutting, and difficult to damage once installed
- Long-term protection when incorporated between concrete linings
Typical Applications:
- Basements, foundations, and retaining walls
- Subway stations, underground structures, and tunnels
- Shotcrete tunnel linings and cavern linings
- Diaphragm walls, piles, and deep foundation structures
- Mining and underground excavation works
- Water-retaining structures such as tanks and reservoirs
- Any concrete structure requiring flexible, high-performance waterproofing
