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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 compromising foam control.
Outstanding electrolyte tolerance, maintaining dispersion stability even in challenging ionic environments.
pH-stable across broad range (pH 4–12), ensuring consistent performance in diverse formulation conditions.
Biodegradable backbone and low aquatic toxicity, supporting sustainable product design and regulatory compliance.
Waterborne architectural coatings for enhanced color strength and gloss retention.
Industrial maintenance paints requiring long-term storage stability and freeze-thaw resistance.
Inkjet ink formulations where particle dispersion and jetting reliability are critical.
Construction additives for cementitious systems to improve pigment and filler dispersion.
Agrochemical suspension concentrates (SCs) demanding robust colloidal stability.
| Chemical Type | Ammonium salt of partially neutralized polyacrylic acid |
| Product Form | Aqueous solution (~25% active content) |
| Appearance | Clear, slightly viscous, colorless to pale yellow liquid |
| pH (10% aqueous solution) | 6.0 – 7.5 |
| Density (20 °C) | ~1.05 – 1.08 g/cm³ |
| Solubility | Completely miscible with water; compatible with common co-solvents |
| Primary Applications | Pigment dispersion stabilizer in waterborne coatings, inks, and agrochemicals |
| Key Features | Low foaming, high electrolyte tolerance, pH robustness, biodegradability |
Q1: What is the primary function of Sokalan HP 25 in formulations?
A: Sokalan HP 25 is a polyacrylate-based dispersing and stabilizing surfactant designed to prevent particle agglomeration, improve pigment wetting, and enhance colloidal stability—particularly in aqueous systems such as architectural coatings, industrial paints, and pigment concentrates.
Q2: Is Sokalan HP 25 compatible with other common additives like defoamers or rheology modifiers?
A: Yes, Sokalan HP 25 generally exhibits good compatibility with non-ionic and anionic additives, including common defoamers, coalescing agents, and associative thickeners. However, compatibility should always be verified experimentally in the final formulation due to potential interactions with cationic species or highly hydrophobic components.
Q3: How does Sokalan HP 25 contribute to gloss and film appearance in coatings?
A: By promoting uniform pigment distribution and minimizing flocculation, Sokalan HP 25 helps achieve smoother, more homogeneous films—leading to improved gloss consistency, reduced haze, and enhanced color strength without compromising clarity in transparent or semi-transparent systems.
Q4: What is the typical dosage range for Sokalan HP 25 in pigment dispersions?
A: Dosage depends on pigment type, loading, and desired performance, but it is typically used at low concentrations—generally ranging from 0.1% to 2% by weight relative to pigment solids—with optimal results often observed between 0.5% and 1.5% in standard aqueous dispersions.
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