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OMG Borchers GenWNS is a high-efficiency water-based special wetting dispersant of the Gen series under OMG Borchers, specially designed for water-based coating and ink systems with environmentally friendly hydrophilic active ingredients as the core. It can efficiently wet and disperse various pigments, improve the color development and storage stability of water-based systems, and is a core supporting additive in the water-based coating field.
Special for water-based systems - Designed for water-based systems with excellent hydrophilic compatibility and no floating color
High-efficiency wetting and dispersion - Quickly wet pigment particles, inhibit agglomeration and improve dispersion uniformity
Excellent color development - Restore the true color of pigments, improve the color saturation and brightness of the paint film
Strong storage stability - Prevent pigment sedimentation and coarsening, ensure long-term stable and non-layered system
Environmentally friendly formula design - No harmful volatile components, meeting the environmental application requirements of water-based systems
Water-based architectural coatings - Interior and exterior water-based paints, optimize pigment dispersion and improve paint film appearance
Water-based industrial coatings - Water-based metal paints and plastic paints, ensure uniform color development and stability
Water-based ink systems - Water-based flexo/gravure inks, improve the color reduction of printing
Water-based color paste preparation - Various water-based pigment color pastes, reduce viscosity and improve storage stability
Water-based wood coatings - Water-based wood paints, improve pigment wettability and enhance paint film texture
| Brand | OMG Borchers (OMG Additives) |
| Chemical Type | Hydrophilic wetting dispersant for water-based systems |
| Chemical Composition | Environmentally friendly hydrophilic active composite ingredients |
| Appearance (20°C) | Pale yellow to light brown transparent liquid |
| Non-volatile Content (Solid Content) | 48-52% |
| Ionicity | Anionic |
| System Compatibility | Pure water-based system, water-based varnish system |
| Specific Gravity (20°C) | 1.05-1.10 g/cm³ |
| Viscosity (25°C, Brookfield) | 300-800 mPa·s |
Q1: What is the primary function of GenWNS in pigment dispersion systems?
A: GenWNS is a high-performance wetting and dispersing additive designed to reduce interfacial tension, promote rapid pigment wetting, and stabilize dispersed particles against agglomeration—particularly in waterborne and low-VOC coatings, inks, and construction applications.
Q2: Is GenWNS suitable for use in food-contact or regulated building material formulations?
A: GenWNS is not specifically certified for direct food-contact applications. For building materials or other regulated end-uses, formulators should conduct full regulatory due diligence—including compatibility with applicable regional compliance frameworks—and consult OMG Borchers technical support for formulation guidance and available documentation.
Q3: How does GenWNS compare to conventional polyacrylate dispersants in terms of stabilization mechanism?
A: Unlike many traditional polyacrylates relying primarily on electrostatic repulsion, GenWNS combines steric hindrance with optimized anchoring groups, offering enhanced stability in low-ionic-strength or pH-variable systems—especially where pigment surface chemistry varies across inorganic and organic types.
Q4: What is the typical dosage range for GenWNS in aqueous pigment pastes?
A: Dosage depends on pigment type, loading, and desired rheology—but GenWNS is typically used at low concentrations, generally ranging from 0.1% to 2% by weight relative to pigment solids. Optimization is recommended via lab-scale trials under target process conditions.
Q5: Can GenWNS be added post-pigment milling, or is it recommended for pre-wetting?
A: For optimal performance, GenWNS is most effective when added during the initial wetting stage—before or concurrent with pigment incorporation—to maximize surface coverage. However, it can also provide measurable stabilization benefits when dosed post-milling in systems requiring viscosity adjustment or re-dispersion of settled fractions.
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E-mail: wangxingqiang@ericwchem.com
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