Silicone Emulsions & Fluids
Silane/Siloxane Masonry Water-Repellent Emulsion | Manta WS180
Manta WS180 is a solvent-free emulsion of reactive silanes and modified polysiloxanes, used as the active ingredient in water-based impregnating agents and hydrophobic primers for mineral building materials. Diluted with water it impregnates brick, natural stone and mineral plasters, and it can also be added to concrete or mortar for integral waterproofing.
- Grade
- WS180
- Chemical Name
- Silane and modified polysiloxane emulsion
- Form
- Milky white liquid
Overview
Manta WS180 is a solvent-free emulsion based on reactive silanes and modified polysiloxanes, with an active content of approx. 50%. It is used as the active ingredient for formulating water-based impregnating agents and hydrophobic primers for mineral building materials.
Its low molecular structure gives good depth of penetration into porous mineral substrates, and the treatment develops high early water resistance shortly after application, with a strong surface water-beading effect. The water vapor permeability of the substrate is maintained, dirt pick-up is very low, and the treatment helps to limit efflorescence of soluble salts.
WS180 covers three uses: surface impregnation after dilution with water, hydrophobic primers in combination with a suitable polymer dispersion (hydrosol), and integral waterproofing and freeze-thaw protection of concrete or mortar. The cationic Manta WS400, by contrast, is for surface application only and must not be added to fresh cement or concrete. For solvent-borne systems, see Manta WS290.
Key Features
- Durable water repellency with a strong surface water-beading effect
- High early water resistance shortly after application
- Maintains the water vapor permeability of the substrate
- Low molecular structure for good depth of penetration
- Very low dirt pick-up; helps to limit efflorescence of soluble salts
- Solvent-free, water-borne formulation
Cross-Reference
Manta WS180 can be considered as an alternative to Wacker SILRES BS 1802.
Trademarks are the property of their respective owners; no affiliation is implied.
Specifications
| Property | Typical Value |
|---|---|
| Appearance | Milky white liquid |
| Active Content (%) | approx. 50 |
| Density (20°C, g/cm³) | approx. 0.95 |
Typical values from the current Technical Data Sheet.
Applications
- Surface impregnation: porous mineral substrates such as fired brick, clinker, sand-lime brick, natural stone and mineral plasters
- Hydrophobic primers: formulated in combination with a suitable polymer dispersion (hydrosol)
- Integral waterproofing: in-mass waterproofing and freeze-thaw protection of concrete or mortar
Application Guidelines
- Surface Impregnation: WS180 is an excellent impregnator for various porous mineral substrates, including fired brick, clinker, sand-lime brick, natural stone, and mineral plasters. Dilute WS180 with clean water at a ratio of 1:4 to 1:9 depending on substrate porosity. Apply the diluted solution generously and evenly using a brush, roller, or the flooding method. To ensure complete coverage and avoid missed spots, a "wet-on-wet" application technique is highly recommended.
- Hydrophobic Primer: When formulated as a hydrophobic primer, it is recommended to be applied in combination with a suitable polymer dispersion (hydrosol).
- Integral Waterproofing: For large-scale in-mass waterproofing and freeze-thaw protection of concrete or mortar, an addition rate of 0.1% to 1.0% by weight of the cement is recommended.
Packaging & Storage
Supplied in 20-25 kg plastic drum, 180-200 kg iron drum.
Safety and Storage
Temperature Sensitivity: Manta WS180 is an aqueous emulsion that is highly sensitive to frost and extreme heat. It must be stored indoors at temperatures between 5°C and 40°C. Exposure to temperatures outside this range may cause irreversible emulsion breakage (phase separation).
Quality Verification: In the event of suspected frost or heat damage, the viability of the product must be thoroughly verified prior to processing.
Storage Stability: After prolonged storage, the emulsion may undergo natural physical changes such as creaming, precipitation, or slight phase separation. Ensure the product is stirred thoroughly (homogenized) before use to restore its uniform state.
Shelf Life: 12 months when stored properly in original, unopened containers. It’s a non-hazardous substance for transport.
Documents
- Technical Data Sheet · PDF Download TDS
- SDS and COA · on request Request Documents
Frequently Asked Questions
What dilution ratio applies when using Manta WS180 as a surface impregnator?
Dilute WS180 with clean water at 1:4 to 1:9, depending on substrate porosity. Apply the diluted solution generously and evenly by brush, roller or flooding to fired brick, clinker, sand-lime brick, natural stone or mineral plasters. A wet-on-wet technique is recommended to avoid missed spots.
Can WS180 also be used as an integral waterproofing admixture?
Yes. For large-scale in-mass waterproofing and freeze-thaw protection of concrete or mortar, the recommended addition rate is 0.1% to 1.0% by weight of the cement.
How quickly does a WS180 treatment become water-resistant?
WS180 develops high early water resistance shortly after application and gives a pronounced surface water-beading effect. The TDS does not state a fixed time, so check the result on your own substrate.
What happens if WS180 freezes during storage?
Manta WS180 is an aqueous emulsion that is highly sensitive to frost and extreme heat. It must be stored indoors at temperatures between 5°C and 40°C. Exposure to temperatures outside this range may cause irreversible emulsion breakage (phase separation). If frost or heat damage is suspected, verify the viability of the product before processing.
Related Products
WS180 is one step in the building protection formulation chain. One inquiry can cover the other raw materials in your formulation, with samples, technical documents, quotation and shipment handled together.
- Alkyl Silane Actives
- Emulsions & Pastes
- Siliconate Liquids & Powders
- Waterproof Coatings
Looking for a different purity, functional group, or a structure not listed here? Contact our technical team.
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