Elementis Deqian Disponer 9258 is a high-efficiency wetting dispersant specially designed for high-end solvent-based coating systems under Elementis Deqian, with acid-group-containing copolymer solution as the core component. It contains no aromatic solvents or organotin, with outstanding environmental protection, and has excellent wettability for pigments and fillers. It can stabilize inorganic pigments, greatly reduce the viscosity of the grinding system, increase pigment filling capacity
Environmentally friendly without harmful additives - No aromatic solvents or organotin, meeting high-end coating environmental standards
Efficient wetting and dispersion - Excellent pigment wettability, stabilizes inorganic pigments, reduces grinding system viscosity
Friendly to film performance - Does not affect film yellowing, ensuring long-term stability of film color
Good low-temperature stability - Adapts to low-temperature storage and construction environments, not easy to stratify or turbidity
Increased filling capacity - Can increase the content of pigments and fillers, optimizing the economy of coating formulas
Alkyd/amino resin coatings - Suitable for alkyd and amino resin systems, optimizing dispersion and film performance
Acrylic/amino resin coatings - Improves coating color development, ensuring film gloss and uniformity
Acrylic polyurethane coatings - Suitable for PU systems, enhancing dispersion stability and improving film weather resistance
Industrial decorative coatings - Various high-end solvent-based industrial and decorative coatings, optimizing pigment dispersion effect
Organic pigment dispersion systems - Specifically used for organic pigment dispersion, especially difficult-to-disperse organic pigment system
| Model | Disponer 9258 |
| Brand | Elementis Deqian |
| Chemical Type | Solvent-based acid-group-containing copolymer wetting dispersant |
| Chemical Composition | Acid-group-containing copolymer solution |
| Appearance (20°C) | Yellow clear liquid |
| Color (20°C) | ≤2 Gardner |
| Non-volatile Content (20°C) | 48-52% |
| Solvent | Dimethyl Carbonate (DMC) |
| Specific Gravity (20°C) | Approx. 1.1 |
| Ionicity | Anionic |
| pH Value (20°C) | 5.5-7.0 (1% solvent solution) |
| Viscosity (25°C) | Approx. 200-800 mPa·s |
Q1: What types of pigments and fillers is Disponer 9258 especially effective for?
A: Disponer 9258 demonstrates strong wetting and dispersing performance with a broad range of inorganic pigments (e.g., titanium dioxide, iron oxides, carbon black) and functional fillers such as silica, calcium carbonate, and talc—particularly where high pigment loading or demanding rheological control is required.
Q2: How does Disponer 9258 contribute to stability in water-based systems?
A: It provides dual stabilization—steric hindrance and electrostatic repulsion—helping to prevent flocculation and sedimentation over time. Its molecular architecture supports long-term dispersion stability under varying pH, temperature, and shear conditions commonly encountered in industrial coatings and ink formulations.
Q3: Can Disponer 9258 be used in combination with other additives?
A: Yes—it is generally compatible with common co-additives including defoamers, rheology modifiers, and film-forming agents. However, optimal compatibility should be confirmed through formulation testing, particularly when used alongside ionic surfactants or highly charged polymers.
Q4: What is the typical dosage range for Disponer 9258 in standard applications?
A: Dosage depends on formulation requirements, but it is typically used at low concentrations—generally ranging from 0.1% to 2% by weight relative to pigment solids—to achieve effective wetting and dispersion without compromising final film properties.
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