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Water-dispersible polyester polymer designed for high-performance aqueous coatings.
Offers excellent film-forming capability and flexibility without added plasticizers.
Provides good adhesion to diverse substrates including metals, plastics, and primed wood.
Delivers balanced hardness and impact resistance in cured films.
Compatible with common crosslinkers such as melamine-formaldehyde and polyisocyanates.
Industrial maintenance coatings for metal structures and equipment.
General-purpose protective coatings for agricultural and construction machinery.
Interior architectural coatings requiring low-VOC, durable finishes.
Coatings for pre-finished metal (coil coating) and metal packaging applications.
Base resin for waterborne baking enamels used in appliance finishing.
| Chemical Type | Water-dispersible saturated polyester polymer |
| Product Form | Aqueous dispersion |
| Appearance | Opaque white to off-white liquid |
| Solids Content | 40–42 wt% |
| pH | 7.5–8.5 |
| Viscosity (Brookfield, #2 spindle, 20 rpm) | 100–300 cP |
| Density (25 °C) | 1.02–1.04 g/cm³ |
| Minimum Film Formation Temperature (MFFT) | ≈35 °C |
Q1: What is the primary function of Eastman AQ-48 in coating and ink formulations?
A: Eastman AQ-48 is a water-dispersible polyester resin designed to enhance film formation, improve substrate adhesion, and increase mechanical durability in aqueous-based coatings and inks—particularly for flexible packaging and paper applications.
Q2: Is Eastman AQ-48 compatible with common waterborne polymer systems such as acrylics and vinyl acetate copolymers?
A: Yes, Eastman AQ-48 exhibits good compatibility with a broad range of waterborne dispersions, including acrylic emulsions and vinyl acetate–based polymers, enabling its use as a performance modifier without compromising colloidal stability or viscosity control.
Q3: How does Eastman AQ-48 contribute to printability and ink receptivity on treated films and foils?
A: Its polar polyester backbone promotes strong interfacial interaction with polar substrates and pigment surfaces, improving ink anchorage, reducing misting during high-speed printing, and supporting consistent gloss and rub resistance in finished prints.
Q4: Can Eastman AQ-48 be used in food-contact compliant formulations?
A: Eastman AQ-48 is manufactured without intentionally added formaldehyde, heavy metals, or alkylphenol ethoxylates, and is suitable for use in food-contact applications where regulatory compliance is verified by the formulator according to applicable regional requirements and intended end-use conditions.
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