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Water-dispersible polyester resin designed for high-performance aqueous coatings.
Excellent film-forming capability with balanced hardness and flexibility.
Good compatibility with acrylic emulsions, melamine crosslinkers, and common additives.
Low VOC formulation enables compliance with stringent environmental regulations.
Provides superior gloss retention and weather resistance in protective and decorative finishes.
Industrial maintenance coatings for metal substrates.
Architectural and OEM coil coatings requiring durable exterior performance.
Waterborne can and container coatings.
High-solids and low-VOC general-purpose industrial primers and topcoats.
Wood and plastic coatings where adhesion and clarity are critical.
| Chemical Type | Water-dispersible saturated polyester resin |
| Product Form | Aqueous dispersion |
| Appearance | Opaque white to off-white liquid |
| pH (25°C) | 7.0–8.5 |
| Solids Content (wt%) | 48–52% |
| Viscosity (Brookfield, LVT, Spindle #3, 20 rpm, 25°C) | 100–300 cP |
| Density (25°C) | 1.02–1.06 g/cm³ |
| Primary Applications | Industrial waterborne coatings, coil coatings, can coatings |
Q1: What is the primary function of Eastman AQ-55S in water-based coatings and inks?
A: Eastman AQ-55S functions as a film-forming polymeric binder and rheology modifier, enhancing gloss, scrub resistance, and substrate adhesion in waterborne systems—particularly where low-VOC performance and good water resistance are required.
Q2: Is Eastman AQ-55S compatible with other common water-based resins or additives?
A: Yes, AQ-55S demonstrates broad compatibility with acrylic emulsions, vinyl acetate copolymers, and common surfactants, coalescents, and defoamers used in architectural and industrial waterborne formulations—though compatibility testing under specific conditions is recommended.
Q3: How does AQ-55S contribute to the drying and film formation behavior of water-based systems?
A: AQ-55S supports efficient coalescence at ambient temperatures and contributes to rapid development of early water resistance and mechanical integrity, without requiring high-temperature curing or strong coalescing agents.
Q4: Can AQ-55S be used in food-contact applications?
A: Eastman AQ-55S is not intended for direct food-contact applications. Formulators seeking food-contact compliance must conduct full regulatory evaluation—including migration assessment and end-use approval—based on final formulation and application conditions.
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