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High hydroxyl functionality for excellent crosslink density with melamine and polyisocyanate curing agents.
Low VOC formulation compliant with stringent environmental regulations including EU REACH and US EPA standards.
Superior gloss retention and UV resistance for long-term exterior durability.
Excellent compatibility with common acrylic and polyester resins, enabling versatile formulation flexibility.
Good flow and leveling characteristics for high-quality film formation in coil and can coatings.
Automotive OEM clearcoats and basecoats.
Industrial coil coatings for pre-painted metal substrates.
General-purpose can coatings for food and beverage containers.
High-performance architectural and industrial maintenance coatings.
Plastic coatings requiring adhesion and flexibility on ABS and PC substrates.
| Chemical Type | Hydroxyl-functional acrylic copolymer |
| Product Form | Liquid resin solution |
| Appearance | Clear, pale yellow liquid |
| Hydroxyl Value (mg KOH/g) | 120–140 |
| Acid Value (mg KOH/g) | < 10 |
| Solids Content (% by weight) | 55–60 |
| Viscosity (DIN 4, 25°C, mPa·s) | 800–1,200 |
| Diluent | Xylene / butyl acetate blend |
Q1: What is the primary function of SETAQUA 6522 in waterborne coating systems?
A: SETAQUA 6522 serves as a hydroxyl-functional acrylic resin designed to act as a reactive binder in two-component (2K) waterborne polyurethane and polyester-urethane systems. It contributes to film formation, crosslink density, and final coating performance—including hardness, flexibility, and chemical resistance—upon reaction with isocyanate curing agents.
Q2: Is SETAQUA 6522 compatible with common waterborne isocyanate hardeners?
A: Yes, SETAQUA 6522 is formulated for compatibility with standard aliphatic water-dispersible isocyanate crosslinkers, including HDI- and IPDI-based polyisocyanates. Optimal compatibility and pot life depend on proper pH adjustment, co-solvent selection, and mixing protocols recommended by Allnex technical documentation.
Q3: How does SETAQUA 6522 support low-VOC and high-performance requirements?
A: As a waterborne hydroxyl acrylic resin, SETAQUA 6522 enables formulators to achieve high solids content with minimal organic solvent use—supporting compliance with stringent VOC regulations. Its molecular design balances reactivity, film clarity, and mechanical properties without compromising environmental objectives.
Q4: Can SETAQUA 6522 be used in ambient-cure or forced-dry applications?
A: SETAQUA 6522 is suitable for both ambient-cure and elevated-temperature forced-dry conditions. Cure speed and final properties are influenced by hardener type, catalyst usage (if any), film thickness, and ambient humidity—formulators should conduct application-specific testing to optimize cure profiles.
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