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High-performance polyacrylate-based dispersant with excellent pigment stabilization in aqueous systems.
Low foaming profile, enabling efficient use in high-shear industrial processes without foam-related defects.
Good compatibility with a broad range of water-based resins, including acrylics, vinyl acetate copolymers, and styrene-butadiene latexes.
Enables improved color strength and gloss retention in architectural and industrial coatings.
Designed for low-VOC formulations and compliant with major global regulatory frameworks for sustainable coatings.
Architectural interior and exterior paints.
Industrial maintenance coatings for metal and concrete substrates.
Water-based wood stains and varnishes.
Printing inks for flexible packaging and paper applications.
Construction additives for cementitious and plaster-based decorative finishes.
| Chemical Type | Polyacrylic acid sodium salt (anionic) |
| Product Form | Aqueous solution (~30% active content) |
| Appearance | Clear to slightly opalescent, light yellow liquid |
| pH (1% aqueous solution, 20°C) | 7.0 – 8.5 |
| Density (20°C) | 1.04 – 1.07 g/cm³ |
| Viscosity (25°C, Brookfield RV, spindle #1, 20 rpm) | 50 – 200 mPa·s |
| Solubility | Completely miscible with water; compatible with common co-solvents (e.g., glycol ethers) |
| Primary Applications | Pigment dispersion and stabilization in waterborne coatings and inks |
Q1: What is the primary function of Sokalan CP 5 in industrial formulations?
A: Sokalan CP 5 is a polyacrylate-based polyelectrolyte surfactant designed primarily for dispersion stabilization and rheology modification. It functions as an effective dispersing aid for pigments, fillers, and inorganic particles in aqueous systems, helping to prevent agglomeration and sedimentation while supporting long-term colloidal stability.
Q2: Is Sokalan CP 5 suitable for use in low-VOC or waterborne coatings?
A: Yes, Sokalan CP 5 is fully compatible with waterborne coating systems and supports low-VOC formulation strategies. It contains no volatile organic solvents and contributes to improved particle stabilization without compromising film formation or requiring high co-solvent levels.
Q3: How does Sokalan CP 5 differ from conventional non-ionic surfactants?
A: Unlike typical non-ionic surfactants, Sokalan CP 5 is an anionic polyelectrolyte that provides steric–electrostatic stabilization through extended chain conformation and surface adsorption. This results in superior resistance to electrolyte-induced flocculation and enhanced performance in high-ionic-strength environments compared to small-molecule surfactants.
Q4: What is the typical dosage range for Sokalan CP 5 in pigment dispersions?
A: Dosage depends on pigment type, loading, and desired stability profile, but it 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 dispersion trials under application-relevant conditions.
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E-mail: wangxingqiang@ericwchem.com
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