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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 volatile organic compound (VOC) content, supporting compliance with stringent environmental regulations.
Excellent compatibility with common solvent-borne acrylic and polyester resins in multi-resin binder systems.
Consistent batch-to-batch reproducibility ensured by Allnex’s controlled polymerization process.
Automotive OEM clearcoats and basecoats requiring high durability and UV resistance.
Industrial maintenance coatings for metal substrates exposed to harsh environments.
General-purpose coil coatings demanding excellent formability and corrosion protection.
Powder coating hybrid systems where solution-acrylic functionality enhances film integrity.
High-gloss decorative architectural finishes for aluminum extrusions and façade panels.
| Chemical Type | Hydroxyl-functional acrylic resin |
| Product Form | Solution in aromatic hydrocarbons (e.g., xylene, Solvesso™ 100) |
| Appearance | Clear, colorless to pale yellow liquid |
| Hydroxyl Value (mg KOH/g) | 75–85 |
| Acid Value (mg KOH/g) | < 5 |
| Non-Volatile Content (% w/w) | 50.0 ± 1.0 |
| Gardner Color | ≤ 2 |
| Viscosity (mPa·s at 25°C) | 3,500–5,500 |
Q1: What is the primary function of SETALUX 1160 XS-51 in coating formulations?
A: SETALUX 1160 XS-51 is a hydroxyl-functional acrylic resin designed as a reactive binder in two-component polyurethane (2K PU) and polyester-based crosslinking systems. It contributes to film formation, enhances hardness and chemical resistance, and supports excellent gloss retention and weatherability in high-performance industrial and automotive topcoats.
Q2: Is SETALUX 1160 XS-51 compatible with common isocyanate crosslinkers?
A: Yes, it is specifically formulated for compatibility with aliphatic isocyanate crosslinkers—such as HDI-based biurets and isocyanurates—commonly used in UV-stable, high-gloss 2K PU coatings. Compatibility testing under actual formulation conditions is recommended to confirm optimal pot life and cure performance.
Q3: How does SETALUX 1160 XS-51 support low-VOC formulation strategies?
A: As a medium-solids, hydroxyl acrylic resin with balanced volatility and reactivity, it enables formulators to reduce overall solvent demand while maintaining application viscosity and film integrity. It is suitable for use in solventborne systems targeting VOC compliance without compromising crosslink density or final film properties.
Q4: What are typical handling and storage recommendations?
A: Store in tightly sealed original containers in a cool, dry, well-ventilated area away from direct sunlight and ignition sources. Avoid prolonged exposure to moisture or freezing temperatures. Prior to use, ensure adequate mixing to maintain homogeneity, especially after extended storage.
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