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High hydroxyl functionality for excellent crosslink density with melamine and polyisocyanate curing agents.
Optimized molecular weight distribution for superior flow, leveling, and gloss development in high-performance coatings.
Low VOC formulation compatibility—designed for compliance with stringent environmental regulations.
Excellent compatibility with common acrylic, polyester, and cellulose ester resins in hybrid coating systems.
Enhanced weathering resistance and UV stability for durable exterior architectural and industrial finishes.
Automotive OEM clearcoats and basecoats requiring high gloss and mar resistance.
Industrial maintenance coatings for metal substrates exposed to harsh environments.
Architectural coil and extrusion coatings demanding long-term color retention and chalking resistance.
Powder coating hybrids where solution-based acrylics enhance film formation and edge coverage.
| Chemical Type | Hydroxyl-functional acrylic copolymer |
| Product Form | Liquid resin in organic solvent (typically xylene/butyl acetate blend) |
| Appearance | Clear, pale yellow liquid |
| Hydroxyl Value (mg KOH/g) | 120–140 |
| Acid Value (mg KOH/g) | < 5 |
| Non-Volatile Content (% w/w) | 55–60 |
| Viscosity (mPa·s, 25°C, DIN 4) | 800–1,200 |
| Primary Applications | 2K automotive refinish, industrial maintenance, coil coating, and premium architectural coatings |
Q1: What is the primary function of SETALUX 17-2319 in coating formulations?
A: SETALUX 17-2319 serves as a hydroxyl-functional acrylic resin designed to act as a reactive binder in two-component polyurethane and polyester-based coating systems. It contributes to film formation, crosslink density, and final coating performance—including hardness, flexibility, and chemical resistance—when reacted with suitable isocyanate or melamine crosslinkers.
Q2: Is SETALUX 17-2319 compatible with common industrial crosslinkers?
A: Yes, it is formulated for compatibility with aliphatic and aromatic isocyanates (e.g., HDI trimer, IPDI-based adducts), as well as amino resins such as melamine-formaldehyde derivatives. Compatibility and reactivity should be confirmed through small-scale formulation trials under intended processing conditions.
Q3: How should SETALUX 17-2319 be stored and handled to maintain stability?
A: Store in tightly sealed original containers in a cool, dry, and well-ventilated area away from direct sunlight and heat sources. Avoid prolonged exposure to moisture or strong oxidizing agents. Prior to use, ensure containers are properly mixed if phase separation or settling is observed, following Allnex’s recommended handling guidelines.
Q4: Can SETALUX 17-2319 be used in low-VOC or high-solids coating systems?
A: Yes—it is commonly incorporated into medium-to-high solids solventborne systems and can support VOC-reduction strategies when combined with appropriate solvents and crosslinkers. Its molecular design allows for good flow and leveling at elevated solids content, though formulation optimization is required to balance viscosity, pot life, and cure profile.
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