Manta WS450 Silicone Resin Emulsion
Aqueous emulsion of modified polysiloxane resin
Technical Specifications
| Parameter | Value / Range |
|---|---|
| Appearance: | Milky white liquid |
| Active Content(%) | approx. 50 |
| Specific Gravity(20℃, g/cm³) | approx. 1 |
Product Description
Manta WS450 is a solvent-free aqueous emulsion of a modified polysiloxane resin. It is specifically engineered to function as the primary binder or co-binder in the formulation of premium exterior architectural coatings and silicone resin plasters.
Equivalent to Wacker SILRES® BS 45.
Properties
- Exceptional Water Repellency: Provides durable, highly effective moisture protection.
- Highly Breathable: Maintains extremely high water vapor permeability, allowing building facades to “breathe”.
- Aesthetic Preservation: Exhibits excellently low dirt pick-up, ensuring long-lasting facade cleanliness.
- Early Rain Resistance: Rapidly develops water resistance shortly after coating application.
- Robust Film-Forming: Forms a resilient, microporous silicone resin network.
- High Alkali Resistance: Perfectly stable in high-pH environments, highly compatible with silicate-based formulations.
- Eco-Friendly: 100% solvent-free, water-borne system.
Applications
Manta WS450 acts as a core hydrophobic binder in silicone resin paints and elastomeric plasters. It delivers the optimal balance of driving-rain protection and vapor transmission. Furthermore, owing to its outstanding alkali resistance, it is highly recommended as a modifying co-binder for sodium silicate paints (mineral paints) to significantly upgrade their water repellency.
Formulation Guidelines
During the manufacturing process, Manta WS450 is typically incorporated into the water-based coating formulation at the following dosages (calculated by weight relative to the total formulation):
Silicone Resin Paints: 4.0% – 10.0%
Silicone-Modified Acrylic Paints: 2.0% – 4.0%
Silicone Resin Plasters / Renders: 2.0% – 6.0%
SiSi Plasters (Silicate/Silicone Hybrid Renders): 2.0% – 4.0%
Formulator’s Tip: While Manta WS450 provides an exceptional microporous water-repellent network, to achieve an ultimate surface water-beading (lotus) effect, we strongly recommend formulating it in combination with 1.0% – 3.0% of Manta WS136 (Water-Repellent Additive).
Application Areas
Packaging & Handling
Packaging
In 190kg drum and 950kg IBC
Safety and Storage
Temperature Sensitivity: Manta WS450 is an aqueous emulsion highly sensitive to frost and extreme heat. Store indoors at temperatures strictly between 5°C and 40°C.
Storage Risks: 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 and homogeneity of the product must be thoroughly verified prior to any formulation or application.
Shelf Life: 12 months when stored properly in original, unopened containers. It is classified as a non-hazardous substance.
Documents & Downloads
Frequently Asked Questions
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