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Elementis Deqian Disponer W-920 is a special wetting dispersant for aqueous systems under Elementis Deqian, with anionic surfactant as the core component, specially designed for the dispersion of organic pigments, iron oxide pigments and medium-low pigment carbon black in aqueous systems. It has excellent wetting power, greatly shortens grinding time, reduces grind paste viscosity
Efficient wetting and grinding - Outstanding wetting power, shortens grinding time, reduces grind paste viscosity
High pigment adaptation - Excellent dispersion effect, can prepare high pigment content color pastes, high cost performance
Excellent color development - Improves pigment color development, reduces color separation and blooming during color mixing, uniform color
Long-term dispersion stability - Effectively prevents pigment flocculation, ensures long-term storage stability of the system
Multi-pigment adaptation - Suitable for organic, iron oxide pigments and medium-low pigment carbon black, strong versatility
Water-based industrial coatings - Various water-based industrial coatings, optimize pigment dispersion and color development effect
Water-based color paste preparation - Special for water-based color paste production, preparing high-concentration, high-stability color pastes
Water-based inks - Water-based printing inks, improve pigment dispersibility and printing color performance
Leather coatings - Water-based leather finishing coatings, optimize the uniformity and adhesion of the finishing layer
Water-based wood coatings - Water-based wood coatings, improve pigment dispersion, enhance film gloss
| Model | Disponer W-920 |
| Brand | Elementis Deqian |
| Chemical Type | Aqueous anionic wetting and dispersing agent |
| Chemical Composition | Anionic surfactant |
| Appearance (25°C) | Light yellow clear liquid |
| Non-volatile Content | 48-50% |
| Solvent | Ethylene glycol monobutyl ether / Water |
| Specific Gravity (25°C) | Approx. 1.03 |
| Acid Value | 20-30 mgKOH/g |
| Viscosity (25°C) | Approx. 50-150 mPa·s |
| pH Value (25°C) | 6.0-8.0 |
Q1: What is the primary function of Disponer W-920 in industrial coating and ink formulations?
A: Disponer W-920 is a high-performance wetting agent designed to reduce surface tension, promote rapid substrate wetting, and enhance pigment dispersion stability—particularly for challenging low-surface-energy substrates such as polyolefins, PET, and treated plastics.
Q2: Is Disponer W-920 compatible with water-based, solvent-based, and UV-curable systems?
A: Yes, Disponer W-920 exhibits broad compatibility across water-based acrylics, solvent-borne nitrocellulose and polyester systems, and many free-radical UV-curable formulations. Compatibility should always be verified during formulation development due to system-specific interactions.
Q3: How does Disponer W-920 differ from conventional silicone or fluorosurfactant wetting agents?
A: Unlike many silicones or fluorosurfactants, Disponer W-920 offers balanced surface activity without excessive foam generation or migration-related defects. It provides strong initial wetting while maintaining good recoatability and intercoat adhesion—key advantages in multi-layer industrial finishing processes.
Q4: What is the recommended addition method and timing for optimal performance?
A: For best results, Disponer W-920 should be added during the let-down stage—after initial pigment grinding but before rheology modifiers and co-solvents. It can be dosed neat or pre-diluted in a compatible carrier liquid, and thorough mixing is essential to ensure uniform distribution.
Q5: Does Disponer W-920 affect film clarity or gloss in clearcoat applications?
A: When used within recommended dosage ranges, Disponer W-920 does not negatively impact optical properties. It is formulated to remain molecularly dispersed and does not cause haze, bloom, or gloss reduction in properly balanced clearcoat systems.
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