Silicone Waterproofing & Water-Reducing Admixture | Manta WS170

Dry Mixing: Weigh the cement and aggregates according to your mix design and mechanically mix them until uniform.

Water Preparation: Dose the waterproofing agent at 1.0% to 2.0% of the total cement weight. Add the agent to the gauging water and stir evenly. (Note: The recommended water-to-cement ratio is typically 0.35–0.40).

Wet Mixing: Slowly add the agent-water mixture to the dry cement blend under continuous mechanical stirring until a homogeneous, lump-free consistency is achieved.

Application: Apply the modified mortar by pouring or troweling (scraping).

Pot Life & Compatibility: Use the prepared mixture within 3 hours. Prolonged standing in a highly alkaline environment may cause premature cross-linking, reducing the waterproofing efficacy. Standard additives, such as water reducers and water-retaining agents (e.g., HPMC at 0.2%), should be added as usual.

Curing: Protect the applied area from rain and direct sunlight for the first 24 hours (minimum 8 hours). A preliminary surface water repellency test can be conducted after 48 hours.

Optimum Performance: Allow 7 days of natural curing to achieve the maximum waterproofing effect.

Surface Preparation: Prior to application, thoroughly clean the substrate to remove all dust, laitance, loose particles, and oily residues.

Moisture Requirement: The substrate surface must be visibly dry to ensure maximum penetration of the active ingredients and optimal waterproofing performance.

Dilution & Application: Dilute the waterproofing agent with clean water at a ratio of 1:8 to 1:15 and stir well. Apply evenly using a low-pressure sprayer, brush, or roller in a cross-hatch pattern, ensuring complete coverage without missing spots. A single saturating coat is usually sufficient. Depending on substrate density and waterproofing requirements, a second coat can be applied after the first coat has dried thoroughly.

Storage of Dilution: Prepare fresh dilutions as needed. Do not store the diluted solution for extended periods. If unavoidable, keep it tightly sealed and use within 6 months. (Note: This product cannot bridge macroscopic cracks. All visible cracks must be repaired and filled prior to the waterproof treatment.)

Weather Conditions: Apply only when the ambient temperature is between 4°C and 40°C. Low temperatures significantly retard the formation of the hydrophobic film, while high temperatures cause rapid evaporation, limiting penetration depth. Protect the treated surface from rain for at least 24 hours. A complete hydrophobic network typically forms within 4 hours in summer and 10 hours in winter.

Due to different proportions of materials and different working conditions, please test it on a small scale to confirm the effect before using it in large quantities.

Keep in a cool and dry place and avoid storage in direct sunlight. Place it out of reach of children. Shelf life is 12 months, Once diluted, the solution remains stable for up to 6 months if kept in a tightly sealed container.