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Integral Concrete Waterproofing Admixture | Manta WS360

Product Code: Manta WS360

Chemical Name Silane/Siloxane Waterproofing Emulsion
Product Form Liquid
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Product Description

Manta WS360 is a water-reducible, solvent-free silane/siloxane emulsion (approx. 50% active substance, specific gravity approx. 0.95) used mainly as an integral waterproofing admixture for freshly mixed concrete and cementitious products. Comparable to Wacker SILRES BS 36, it resists the alkalinity of fresh cement and is dosed neat at 0.1-1.0% by cement weight.

Manta WS360 is a water-reducible, solvent-free emulsion based on organically modified silanes and siloxanes. It is engineered primarily as a high-performance mass waterproofing admixture for freshly mixed concrete, and can also be utilized for the topical impregnation of cured concrete surfaces. Equivalent to: Wacker SILRES® BS 36

Properties

  • Eco-Friendly Profile: Water-borne, solvent-free formulation.
  • High Stability: Exhibits excellent storage shelf-life and outstanding dilution stability.
  • Alkali Resistance: Highly resistant to the extreme alkaline environment of fresh cementitious matrices.
  • Breathable Moisture Barrier: Significantly reduces capillary water absorption while fully maintaining the substrate’s water vapor permeability (breathability).

Applications

Manta WS360 is primarily recommended as an integral waterproofing admixture for concrete and specialized cementitious products.

  • For Non-Load-Bearing Concrete (Diluted Use): WS360 can be pre-diluted with clean water at a ratio of 1:4 (WS360 : Water). The recommended dosage of this diluted solution is 1.0% to 5.0% by weight of the cement content.
  • Standard Integral Addition (Neat Use): If using the concentrated product directly, the recommended dosage is 0.1% to 1.0% by weight of the cement content.
  • Mixing Guidelines: Add WS360 directly to the gauging water or introduce it during the active mixing process. Do not pre-mix WS360 directly with other concrete admixtures prior to addition.

Packaging & Handling

Packaging

In 60kg, 120kg plastic drums and can be customized.

 

Safety and Storage

Temperature Sensitivity: This emulsion is sensitive to extreme temperatures. Store indoors in a cool, well-ventilated, and dry area. Protect strictly from frost and direct sunlight. Storage temperatures must remain between 5°C and 40°C (41°F – 104°F) to prevent irreversible emulsion breakage.

Homogenization: After prolonged storage, minor phase separation or creaming may occur. Thoroughly stir or agitate the product before use to ensure complete homogeneity.

Shelf Life: 12 months in original unopened containers. Material that has passed its shelf life may still be viable, provided it passes standard quality control testing before processing. It’s a non-hazardous substance for transport.

Support

Frequently Asked Questions

What are the neat and diluted dosage options for Manta WS360?

Used neat, the recommended dosage is 0.1% to 1.0% by weight of the cement content. For non-load-bearing concrete, WS360 can instead be pre-diluted 1:4 with clean water and the diluted solution dosed at 1.0% to 5.0% by cement weight.

How should WS360 be introduced into the concrete mix?

Add WS360 directly to the gauging water or introduce it during the active mixing process. Do not pre-mix it directly with other concrete admixtures prior to addition.

Does WS360 withstand the alkalinity of fresh cementitious mixes?

Yes. WS360 is highly resistant to the extreme alkaline environment of fresh cementitious matrices, and it significantly reduces capillary water absorption while fully maintaining the substrate's water vapor permeability.

Is WS360 classified as hazardous for shipping?

No, it is a non-hazardous substance for transport, supplied in 60 kg and 120 kg plastic drums or customized packaging. Store it indoors at 5-40°C away from frost and direct sunlight; shelf life is 12 months, and material past shelf life may still be viable after quality control testing.

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