Manta CW-101 Cementitious Capillary Crystalline Waterproofing Coating

Manta CW-101 is a surface-applied, integral waterproofing coating for concrete structures. Formulated as a dry powder, it consists of Portland cement, highly refined quartz silica, and a proprietary blend of active chemical compounds.When mixed with water and applied to concrete, it provides a permanent, highly effective waterproofing system that becomes an integral part of the concrete matrix itself.

Reaction MechanismThe waterproofing effect is achieved through a unique crystalline technology. The active chemicals in Manta CW-101 utilize the moisture present in the concrete capillaries to react catalytically with the unhydrated cement particles and free lime (Ca(OH)2).

This reaction generates non-soluble, needle-like crystals that penetrate deeply into the capillary tracts and micro-cracks of the concrete (effectively sealing the near-surface matrix, typically 5–50mm deep). These crystals permanently block the pathways for water and waterborne contaminants.

Features

• Autogenous Self-Healing: The crystalline reaction remains dormant when dry but actively reactivates in the presence of moisture to seal new, subsequent micro-cracks, ensuring long-term structural integrity.
• Positive & Negative Side Waterproofing: Highly effective against severe hydrostatic pressure from either the positive (exterior) or negative (interior) side of the concrete structure.
• Permanent Protection: Becomes an integral part of the concrete matrix. It will not puncture, tear, or deteriorate like conventional surface membranes.
• 100% Breathable: Completely blocks liquid water ingress while allowing water vapor to pass through, preventing vapor pressure build-up.
• Potable Water Approved: A green, non-toxic, and odorless formulation, strictly safe for use in drinking water reservoirs and food-processing facilities.

Manta CW-101 is the ultimate waterproofing solution for critical concrete infrastructure:

1. Underground Structures: Basements, foundations, retaining walls, and underground parking garages.
2. Water & Wastewater: Potable water tanks, sewage treatment plants, reservoirs, and swimming pools.
3. Civil Engineering: Tunnels, subway systems, elevator shafts, dams, and bridge decks.

Application Guidelines

• Surface Preparation: Concrete surfaces must be clean, sound, and have an open capillary structure. Remove all laitance, dirt, oil, and existing coatings.
• Pre-Wetting (CRITICAL): The concrete substrate must be thoroughly pre-wetted to a saturated-surface-dry (SSD) condition prior to application. Moisture is the vital catalyst for crystal growth.
• Mixing: Mix the powder with clean water according to the specified ratio to form a creamy slurry.
• Application: Apply via a masonry brush or specialized spray equipment in one or two coats.
• Curing: Treated surfaces must be kept moist for 48 to 72 hours after initial set to ensure optimal internal crystal formation. Protect from extreme weather during curing.