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Silicone Emulsions & Fluids

Silicone Resin Emulsion for Architectural Paints | Manta WS600

Manta WS600 is a solvent-free aqueous emulsion of a highly reactive, modified polysiloxane resin, used as the primary binder or co-binder in exterior silicone resin paints and plasters. With a pH of approx. 9 and high alkali resistance, it is also recommended as a modifying co-binder for sodium silicate mineral paints to improve water repellency.

Grade
WS600
Chemical Name
Aqueous emulsion of modified polysiloxane resin
Form
Milky white liquid

Overview

Manta WS600 is a solvent-free aqueous emulsion of a highly reactive, modified polysiloxane resin, with an active content of approx. 50% and a pH of approx. 9. It serves as the primary binder or co-binder in exterior architectural coatings and plasters, forming a durable, microporous silicone resin network.

Systems formulated with WS600 balance protection against driving rain with high water vapor transmission, allowing the masonry to breathe. The coating shows very low dirt pick-up and develops early water resistance shortly after application. The resin is highly stable in high-pH environments and compatible with silicate-based systems, so it is also recommended as a modifying co-binder for sodium silicate paints.

The closest grade is Manta WS450, which has the same recommended dosage ranges for each coating type. WS600 is the grade described as highly reactive, and it is supplied in 20-25 kg plastic drum, 180-200 kg iron drum, while WS450 comes in 190 kg drum and 950 kg IBC. For a pronounced surface water-beading effect, the TDS recommends adding Manta WS136 to the final coating formulation.

Key Features

  • Highly reactive modified polysiloxane resin
  • Primary binder or co-binder for exterior coatings and plasters
  • Durable, microporous silicone resin network
  • Very high water vapor permeability
  • Very low dirt pick-up
  • Rapid development of early rain resistance
  • High alkali resistance; compatible with silicate-based systems
  • Solvent-free, water-borne formulation

Cross-Reference

Manta WS600 can be considered as an alternative to Wacker SILRES BS 60.

Trademarks are the property of their respective owners; no affiliation is implied.

Specifications

Typical properties of Manta WS600
PropertyTypical Value
AppearanceMilky white liquid
Active Content (%)approx. 50
Density (20°C, g/cm³)approx. 1
pH Valueapprox. 9

Typical values from the current Technical Data Sheet.

Applications

  • Silicone resin paints and plasters: core hydrophobic binder for driving-rain protection with vapor transmission
  • Silicone-modified (reinforced) acrylic paints: added during manufacture of water-based coatings
  • SiSi plasters: silicate/silicone hybrid renders
  • Sodium silicate (mineral) paints: modifying co-binder to improve water repellency

Formulation Guidelines

During the manufacturing process, Manta WS600 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 (Reinforced) 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: To achieve an outstanding surface water-beading (lotus) effect, we highly recommend incorporating 1% – 3% of Manta WS136 into the final coating formulation.

Related applications: Paints & Coatings

Packaging & Storage

Supplied in 20-25 kg plastic drum, 180-200 kg iron drum.

Safety and Storage

Temperature Sensitivity: Manta WS600 is an aqueous emulsion that is highly sensitive to frost and extreme heat. It must be stored indoors at temperatures strictly between 5°C and 40°C.

Storage Risks: Exposure to temperatures outside this recommended 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 processing.

Documents

Frequently Asked Questions

How do Manta WS600 and Manta WS450 differ as coating binders?

Both are approx. 50% active aqueous emulsions of modified polysiloxane resin with the same recommended dosage ranges. WS600 is based on a highly reactive modified polysiloxane resin and is supplied in 20-25 kg plastic drum, 180-200 kg iron drum. WS450 is supplied in 190 kg drum and 950 kg IBC. Compare both in your own formulation before selecting.

Which coating types can be formulated with WS600?

WS600 is used at 4.0% – 10.0% in silicone resin paints, 2.0% – 4.0% in silicone-modified (reinforced) acrylic paints, 2.0% – 6.0% in silicone resin plasters and renders, and 2.0% – 4.0% in SiSi silicate/silicone hybrid renders. All dosages are by weight relative to the total formulation.

Can WS600 improve the water repellency of silicate paints?

Yes. Its high alkali resistance makes WS600 highly stable in high-pH environments and compatible with silicate-based systems, so it is recommended as a modifying co-binder for sodium silicate (mineral) paints to significantly improve their water repellency.

Looking for a different purity, functional group, or a structure not listed here? Contact our technical team.

Talk to our technical team

Tell us your application, target properties and estimated quantity. We will suggest grades and arrange documents or samples.