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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 Directive 2004/42/EC.
Superior weather resistance and UV stability for long-term gloss retention and color stability.
Excellent compatibility with common solvent-based acrylic and polyester resins in industrial coatings systems.
Consistent batch-to-batch performance ensured by Allnex’s ISO 9001-certified manufacturing process.
Automotive OEM topcoats and clearcoats.
Industrial maintenance coatings for metal substrates.
General-purpose coil coatings requiring high durability and flexibility.
Powder coating hybrid systems (acrylic-polyester blends).
High-performance wood finishes for furniture and cabinetry.
| Chemical Type | Hydroxyl-functional acrylic copolymer |
| Product Form | Liquid resin in aromatic hydrocarbon solvent |
| Appearance | Clear, pale yellow liquid |
| Hydroxyl Value (mg KOH/g) | 85–95 |
| Acid Value (mg KOH/g) | < 5 |
| Solids Content (% w/w) | 60 ± 2 |
| Viscosity (mPa·s, 25°C, DIN 4) | 4,000–6,000 |
| Primary Applications | OEM automotive, industrial coil, and general metal finishing coatings |
Q1: What is the primary function of SETALUX 17-1745 in coating formulations?
A: SETALUX 17-1745 serves as a hydroxyl-functional acrylic resin designed to act as a reactive binder in two-component polyurethane 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 topcoats.
Q2: Which crosslinkers are typically compatible with this resin?
A: SETALUX 17-1745 is formulated for compatibility with standard aliphatic isocyanate crosslinkers (e.g., HDI trimer and biuret types) and melamine-formaldehyde resins. Compatibility and reactivity should be verified experimentally within the final formulation, especially when incorporating additives or alternative solvents.
Q3: Can this resin be used in low-VOC or solvent-reduced systems?
A: Yes — SETALUX 17-1745 exhibits good solubility in common medium- and slow-evaporating esters and glycol ethers, supporting formulating flexibility for VOC-compliant and solvent-reduced industrial coatings. Its molecular design helps maintain viscosity stability and film integrity during solvent reduction.
Q4: How does SETALUX 17-1745 perform in terms of UV stability and outdoor durability?
A: As a purely acrylic hydroxyl resin with no aromatic backbone, it offers inherently strong UV resistance and minimal yellowing potential. When properly cured with aliphatic isocyanates, it delivers excellent long-term gloss retention and chalking resistance in exterior architectural and automotive refinish applications.
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