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Elementis Deqian Disponer 923S is a special wetting dispersant for medium and low polar solvent-based systems under Elementis Deqian, with a mixture of neutral carboxylic acid amine salt and modified polysiloxane as the core component, specially designed for inorganic pigment dispersion and bentonite activation. It has excellent interfacial activity, can efficiently wet and deflocculate inorganic pigments
Efficient wetting and deflocculation - Improve the efficiency of inorganic pigment wetting and deflocculation, greatly shorten grinding and dispersion time
Anti-re-agglomeration and stability - Adsorb on pigment surface, prevent re-agglomeration, ensure long-term storage stability of coatings
Bentonite activation - Optimize bentonite pre-gel, shorten dispersion time, improve anti-settling and anti-sagging properties
Anti-floating and anti-blooming - Reduce floating color and blooming in multi-pigment systems, ensure uniform coating color
Medium and low polar compatibility - Compatible with medium and low polar solvent-based systems, good compatibility with various resins
Ready-mixed paint systems - Various solvent-based ready-mixed paints, improve inorganic pigment dispersion and storage stability
Epoxy coatings - Solvent-based epoxy coatings, optimize pigment dispersion, ensure film performance
Alkyd/amino resin coatings - Suitable for alkyd and amino resin blended systems, improve color development and leveling
Acid-cured coatings - Acid-cured wood and industrial coatings, prevent floating color and blooming, improve gloss
Chlorinated rubber coatings - Chlorinated rubber anti-corrosive coatings, improve pigment dispersion and coating weather resistance
| Chemical Composition | Mixture of neutral carboxylic acid amine salt and modified polysiloxane |
| Alias | Disponer 923S Dispersant, Inorganic Pigment Dispersant, Bentonite Activation Additive |
| CAS No | Adapt to carboxylic acid amine salt and polysiloxane blend system |
| Appearance (25°C) | Brown slightly turbid liquid |
| Non-volatile Content | 38-41% |
| Solvent | Aromatic hydrocarbon solvent |
| Specific Gravity (25°C) | About 0.89 (0.88-0.90) |
| Refractive Index (25°C) | 1.491-1.497 |
| Recommended Dosage | 0.2-1.2% (based on total formula weight) |
Q1: What is the primary function of Disponer 923S in coating and ink formulations?
A: Disponer 923S is a high-efficiency, non-ionic wetting agent designed to reduce surface tension, promote rapid substrate wetting, and enhance pigment dispersion stability—particularly in water-based systems such as architectural coatings, industrial finishes, and flexographic inks.
Q2: Is Disponer 923S compatible with common thickeners and rheology modifiers?
A: Yes, Disponer 923S demonstrates good compatibility with associative and non-associative thickeners—including HEUR, HASE, and cellulose derivatives—without compromising viscosity development or causing phase separation under typical formulation conditions.
Q3: How does Disponer 923S perform in low-VOC or zero-VOC formulations?
A: Disponer 923S is well-suited for low- and zero-VOC applications due to its low volatility, absence of APEOs, and effective performance at low use levels—supporting compliance with evolving environmental regulations without sacrificing wetting efficiency.
Q4: Can Disponer 923S be added at different stages of the manufacturing process?
A: Yes—it can be incorporated during pigment pre-mixing, let-down, or post-addition, offering formulation flexibility. For optimal dispersion, addition during the initial grind stage is generally recommended; however, post-addition may be used to fine-tune surface behavior in final adjustments.
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