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Waterborne hydroxyl-functional acrylic resin designed for high-performance two-component polyurethane coatings.
Offers excellent compatibility with aliphatic isocyanates and common co-resins in aqueous systems.
Delivers outstanding film hardness, gloss retention, and chemical resistance after crosslinking.
Provides low VOC content and meets stringent environmental regulations for architectural and industrial coatings.
Ensures good storage stability and freeze-thaw resistance in standard aqueous formulations.
Architectural interior and exterior wall coatings requiring durability and low-VOC compliance.
Industrial maintenance coatings for metal substrates, including machinery and equipment finishes.
Wood coatings for furniture and cabinetry where clarity, hardness, and yellowing resistance are critical.
Plastic coatings for automotive interior trim and consumer electronics housings.
High-end refinish coatings demanding fast cure response and superior mar resistance.
| Chemical Type | Hydroxyl-functional acrylic copolymer (waterborne) |
| Product Form | Aqueous dispersion |
| Appearance | Clear to slightly hazy, colorless to pale yellow liquid |
| Solids Content (wt%) | 35–37% |
| pH | 7.5–8.5 |
| Hydroxyl Value (mg KOH/g) | 45–55 |
| Viscosity (mPa·s, Brookfield RVT, #2 spindle, 20 rpm, 25°C) | 100–300 |
| Minimum Film Formation Temperature (MFFT) | ≈ 15°C |
Q1: What is the primary function of SETAQUA 6301 in waterborne coating systems?
A: SETAQUA 6301 serves as a hydroxyl-functional acrylic resin designed to act as a reactive binder in two-component (2K) waterborne polyurethane and polyester systems. It provides crosslinking sites for isocyanate curing agents, contributing to film hardness, chemical resistance, and mechanical durability.
Q2: Is SETAQUA 6301 compatible with common waterborne polyisocyanate hardeners?
A: Yes, SETAQUA 6301 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 hydrophilic balance and reactivity profile.
Q3: How does SETAQUA 6301 support low-VOC and high-solids formulation goals?
A: As a 100% waterborne, non-solvent-based resin, SETAQUA 6301 enables formulators to meet stringent VOC regulations without compromising film formation or cure response. Its solid content and particle size distribution are optimized to support higher PVC formulations while maintaining stability and application properties.
Q4: Can SETAQUA 6301 be used in direct-to-metal (DTM) applications?
A: Yes — it is frequently employed in DTM industrial coatings where corrosion resistance, adhesion to untreated or lightly pretreated metal substrates, and fast ambient-cure development are required. Performance in this role benefits from proper pigment dispersion and synergistic use of adhesion promoters.
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