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Waterborne hydroxyl-functional acrylic resin designed for high-performance two-component polyurethane coatings.
Offers excellent compatibility with aliphatic isocyanates and good film formation at low bake temperatures.
Delivers outstanding gloss retention, weather resistance, and UV stability in exterior applications.
Provides balanced viscosity and solids content for efficient spray application and smooth film build.
Complies with stringent VOC regulations and supports sustainable coating formulations.
Automotive OEM clearcoats and basecoats requiring high durability and aesthetic performance.
Industrial maintenance coatings for metal substrates exposed to harsh environmental conditions.
Architectural coatings for aluminum composite panels (ACP) and extruded aluminum profiles.
Precision plastic coatings for automotive interior trim and electronics housings.
High-end wood finishes where clarity, hardness, and chemical resistance are critical.
| Chemical Type | Hydroxyl-functional acrylic copolymer |
| Product Form | Aqueous dispersion |
| Appearance | Clear to slightly hazy, colorless to pale yellow liquid |
| Non-Volatile Content (wt%) | 35–37% |
| pH | 7.5–8.5 |
| Hydroxyl Value (mg KOH/g) | 60–75 |
| Viscosity (mPa·s, Brookfield RVT, #2 spindle, 20 rpm, 25°C) | 150–400 |
| Primary Applications | 2K waterborne polyurethane topcoats |
Q1: What is the primary function of SETAQUA 6411 in waterborne coating systems?
A: SETAQUA 6411 serves as a hydroxyl-functional acrylic resin designed to act as a reactive binder in two-component (2K) waterborne polyurethane systems. It provides crosslinking sites for isocyanate curing agents, contributing to film hardness, chemical resistance, and mechanical durability.
Q2: Is SETAQUA 6411 compatible with common waterborne polyisocyanate hardeners?
A: Yes, SETAQUA 6411 is formulated for compatibility with standard aliphatic water-dispersible polyisocyanates, including HDI- and IPDI-based crosslinkers. Optimal performance is achieved when matched with hardeners offering appropriate hydrophilicity and reactivity balance.
Q3: How does SETAQUA 6411 contribute to VOC compliance in finished coatings?
A: As a waterborne hydroxyl acrylic resin, SETAQUA 6411 enables formulators to develop low-VOC or zero-VOC 2K systems by replacing solvent-borne alternatives. Its aqueous dispersion eliminates the need for high-boiling solvents typically required in traditional acrylic polyols.
Q4: Can SETAQUA 6411 be used in direct-to-metal (DTM) applications?
A: Yes — it is commonly employed in high-performance DTM coatings for industrial maintenance and general metal protection, where balanced cure speed, adhesion to untreated or pretreated steel/aluminum, and resistance to humidity during cure are critical.
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